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grep.com/patent/US4290598A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290599A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290600A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290601A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290602A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290603A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290604A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290605A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290606A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290607A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290608A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290609A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290610A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290611A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290612A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290613A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290614A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290615A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290616A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290617A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290618A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290619A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290620A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290621A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290622A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290623A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290624A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290625A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290626A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290627A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290628A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290629A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290630A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290631A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290632A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290633A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290634A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290635A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290636A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290637A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290638A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290639A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290640A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290641A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290642A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290643A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290644A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290645A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290646A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290647A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290648A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290649A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290650A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290651A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290652A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://p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s://patentgrep.com/patent/US4290709A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290710A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290711A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290712A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290713A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290714A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290715A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290716A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290717A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290718A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290719A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290720A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290721A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290722A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290723A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290724A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290725A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290726A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290727A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290728A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290729A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290730A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290731A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290732A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290733A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290734A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290735A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290736A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290737A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290738A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290739A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290740A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290741A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290742A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290743A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290744A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290745A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290746A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290747A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290748A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290749A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290750A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290751A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290752A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290753A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290754A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290755A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290756A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290757A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290758A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290759A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290760A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290761A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290762A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290763A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290764A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290765A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290766A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290767A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290768A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290769A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290770A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290771A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290772A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290773A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290774A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290775A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290776A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290777A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290778A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290779A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290780A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290781A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290782A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290783A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290784A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290785A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290786A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290787A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290788A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290789A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290790A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290791A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290792A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290793A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290794A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290795A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290796A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290797A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290798A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290799A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290800A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290801A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290802A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290803A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290804A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290805A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290806A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290807A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290808A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290809A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290810A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290811A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290812A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290813A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290814A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290815A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290816A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290817A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290818A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290819A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290820A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290821A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290822A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290823A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290824A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290825A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290826A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290827A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290828A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290829A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290830A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290831A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290832A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290833A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290834A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290835A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290836A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290837A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290838A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290839A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290840A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290841A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290842A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290843A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290844A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290845A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290846A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290847A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290848A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290849A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290850A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290851A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290852A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290853A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290854A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290855A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290856A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290857A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290858A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290859A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290860A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290861A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290862A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290863A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290864A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290865A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290866A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290867A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290868A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290869A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290870A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290871A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290872A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290873A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290874A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290875A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290876A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290877A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290878A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290879A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290880A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290881A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290882A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290883A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290884A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290885A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290886A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290887A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290888A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290889A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290890A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290891A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290892A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290893A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290894A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290895A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290896A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290897A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290898A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290899A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290900A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290901A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290902A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290903A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290904A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290905A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290906A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290907A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290908A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290909A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290910A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290911A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290912A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290913A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290914A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290915A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290916A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290917A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290918A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290919A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290920A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290921A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290922A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290923A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290924A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290925A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290926A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290927A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290928A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290929A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290930A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290931A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290932A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290933A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290934A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290935A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290936A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290937A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290938A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290939A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290940A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290941A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290942A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290943A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290944A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290945A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290946A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290947A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290948A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290949A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290950A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290951A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290952A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290953A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290954A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290955A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290956A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290957A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290958A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290959A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290960A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290961A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290962A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290963A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290964A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290965A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290966A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290967A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290968A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290969A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290970A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290971A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290972A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290973A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290974A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290975A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290976A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290977A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290978A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290979A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290980A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290981A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290982A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290983A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290984A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290985A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290986A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290987A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290988A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290989A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290990A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290991A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290992A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290993A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290994A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290995A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290996A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290997A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290998A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4290999A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291000A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291001A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291002A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291003A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291004A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291005A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291006A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291007A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291008A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291009A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291010A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291011A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291012A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291014A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291015A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291016A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291017A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291018A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291019A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291020A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291021A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291022A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291023A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291024A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291025A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291026A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291027A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291028A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291029A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291030A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291031A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291032A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291033A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291034A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291035A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291036A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291037A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291038A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291039A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291040A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291041A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291042A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291043A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291044A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291045A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291046A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291047A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291048A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291049A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291050A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291051A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291052A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291053A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291054A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291055A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291056A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291057A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291058A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291059A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291060A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291061A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291062A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291063A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291064A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291065A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291066A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291068A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291069A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291070A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291071A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291072A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291073A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291074A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291075A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291076A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291077A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291078A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291079A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291080A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291081A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291082A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291083A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291084A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291085A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291086A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291087A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291088A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291089A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291090A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291091A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291092A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291093A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291094A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291095A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291096A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291097A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291098A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291099A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291100A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291101A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291102A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291103A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291104A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291105A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291106A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291107A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291108A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291109A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291111A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291112A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291113A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291114A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291115A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291116A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291117A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291118A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291119A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291120A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291121A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291122A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291123A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291124A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291125A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291126A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291127A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291128A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291129A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291130A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291131A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291132A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291133A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291134A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291135A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291136A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291137A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291138A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291139A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291140A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291141A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291142A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291143A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291144A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291145A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291146A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291147A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291148A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291149A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291150A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291151A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291152A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291153A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291154A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291155A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291156A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291157A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291158A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291159A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291160A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291161A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291162A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291163A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291164A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291165A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291166A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291167A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291168A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291169A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291170A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291171A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291172A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291173A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291174A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291175A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291176A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291177A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291178A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291179A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291180A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291181A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291182A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291183A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291184A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291185A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291186A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291187A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291188A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291189A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291190A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291191A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291192A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291193A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291194A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291195A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291196A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291197A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291199A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291200A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291201A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291202A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291203A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291204A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291205A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291206A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291207A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291208A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291209A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291210A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291211A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291212A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291213A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291214A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291215A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291216A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291217A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291218A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291219A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291220A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291221A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291222A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291223A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291224A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291225A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291226A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291227A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291228A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291229A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291230A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291231A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291232A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291233A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291234A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291236A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291237A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291238A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291239A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291240A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291241A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291242A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291243A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291244A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291245A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291246A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291247A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291248A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291249A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291250A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291251A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291252A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291253A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291254A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291255A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291256A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291257A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291258A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291259A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291260A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291261A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291262A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291263A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291264A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291265A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291266A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291267A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291268A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291269A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291270A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291271A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291272A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291273A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291274A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291275A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291276A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291278A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291279A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291280A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291281A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291282A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291283A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291284A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291285A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291286A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291287A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291288A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291289A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291290A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291291A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291292A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291293A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291294A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291295A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291296A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291297A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291298A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291299A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291300A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291301A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291302A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291303A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291304A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291305A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291306A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291307A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291308A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291309A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291310A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291311A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291313A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291314A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291315A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291316A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291317A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291318A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291319A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291320A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291321A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291322A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291323A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291324A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291325A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291326A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291327A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291328A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291329A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291330A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291331A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291332A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291333A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291334A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291335A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291336A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291337A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291338A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291339A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291340A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291341A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291342A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291343A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291344A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291345A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291346A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291347A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291348A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291349A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291350A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291351A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291352A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291353A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291354A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291355A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291356A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291357A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291358A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291359A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291360A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291361A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291362A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291363A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291364A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291365A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291366A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291367A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291368A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291369A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291370A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291371A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291372A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291373A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291374A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291375A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291376A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291377A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291378A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291379A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291380A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291381A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291382A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291383A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291384A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291385A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291386A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291387A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291388A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291389A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291390A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291391A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291392A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291393A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291394A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291395A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291396A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291397A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291398A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291399A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291400A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291401A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291402A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291403A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291404A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291405A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291406A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291407A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291408A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291411A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291412A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291413A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291414A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291415A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4291416A</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260820S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260821S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260822S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260823S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260824S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260825S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260826S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260827S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260828S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260829S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260830S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260831S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260832S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260833S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260834S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/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tent/USD260890S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260891S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260892S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260893S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260894S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260895S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260896S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260897S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260898S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260899S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260900S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260901S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260902S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260903S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260904S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260905S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260906S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260907S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260908S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260909S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260910S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260911S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260912S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260913S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260914S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260915S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260916S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260917S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260918S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260919S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260920S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260921S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260922S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260923S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260924S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260925S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260926S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260927S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260928S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260929S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260930S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260931S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260932S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260933S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260934S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260935S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260936S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260937S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260938S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260939S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260940S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260941S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260942S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260943S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD260944S</loc><lastmod>1981-09-22</lastmod></url><url><loc>https://patentgrep.c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p.com/patent/US4288927A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288928A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288929A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288930A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288931A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288932A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288933A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288934A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288935A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288936A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288937A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288938A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288939A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288940A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288941A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288942A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288943A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288944A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288945A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288946A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288947A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288948A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288949A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288950A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288951A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288952A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288953A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288954A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288955A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288956A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288957A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288958A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288959A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288960A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288961A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288962A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288963A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288964A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288965A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288966A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288967A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288968A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288969A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288970A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288971A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288972A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288973A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288974A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288975A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288976A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288977A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288978A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288979A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288980A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288981A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288982A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288983A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288984A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288985A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288986A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288987A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288988A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288989A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288990A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288991A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288992A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288993A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288994A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288995A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288996A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288997A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288998A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4288999A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289000A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289001A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289002A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289003A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289004A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289005A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289006A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289007A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289008A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289009A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289010A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289011A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289012A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289013A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289014A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289015A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289016A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289017A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289018A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289019A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289020A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289021A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289022A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289023A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289024A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289025A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289026A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289027A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289028A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289029A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289030A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289031A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289032A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289033A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289034A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289035A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289036A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https:/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rl><url><loc>https://patentgrep.com/patent/US4289264A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289265A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289266A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289267A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289268A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289269A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289270A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289271A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289272A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289273A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289274A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289275A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289276A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289277A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289278A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289279A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289280A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289281A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289282A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289283A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289284A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289285A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289286A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289287A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289288A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289289A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289290A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289291A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289292A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289293A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289294A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289295A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289296A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289297A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289298A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289299A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289300A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289301A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289302A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289303A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289304A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289305A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289306A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289307A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289308A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289309A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289310A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289311A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289312A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289313A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289314A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289315A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289316A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289317A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289318A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289319A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289320A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289321A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289322A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289323A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289324A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289325A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289326A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289327A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289328A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289329A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289330A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289331A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289332A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289333A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289334A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289335A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289336A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289337A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289338A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289339A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289340A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289341A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289342A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289343A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289344A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289345A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289346A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289347A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289348A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289349A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289350A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289351A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289352A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289353A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289354A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289355A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289356A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289357A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289358A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289359A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289361A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289362A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289363A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289364A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289365A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289366A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289367A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289368A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289369A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289370A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289372A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289373A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289374A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289375A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289376A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289377A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289378A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289379A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289380A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289381A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289382A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289383A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289384A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289385A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289386A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289387A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289388A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289389A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289390A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289391A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289392A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289393A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289394A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289395A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289396A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289397A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289398A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289399A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289401A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289402A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289403A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289404A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289405A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289406A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289407A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289408A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289409A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289410A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289411A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289412A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289413A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289414A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289415A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289416A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289417A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289418A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289419A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289420A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289421A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289422A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289423A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289424A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289425A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289426A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289427A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289428A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289429A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289430A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289431A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289432A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289433A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289434A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289435A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289436A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289437A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289438A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289439A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289440A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289441A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289442A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289443A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289444A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289445A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289446A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289447A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289448A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289449A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289450A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289451A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289452A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289453A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289454A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289455A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289456A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289457A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289458A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289459A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289460A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289461A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289462A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289463A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289464A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289465A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289466A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289467A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289468A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289469A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289470A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289471A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289472A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289473A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289474A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289475A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289476A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289477A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289478A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289479A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289480A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289481A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289482A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289483A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289484A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289485A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289486A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289487A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289488A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289489A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289490A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289491A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289492A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289493A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289494A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289495A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289496A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289497A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289498A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289499A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289500A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289501A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289502A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289503A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289504A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289505A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289506A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289507A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289508A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289509A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289510A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289511A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289512A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289514A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289515A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289516A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289517A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289518A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289519A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289520A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289521A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289522A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289523A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289524A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289525A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289526A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289527A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289528A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289529A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289530A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289531A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289532A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289533A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289534A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289535A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289536A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289537A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289538A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289539A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289540A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289541A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289542A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289543A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289544A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289545A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289546A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289547A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289548A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289549A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289550A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289551A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289552A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289553A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289554A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289555A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289556A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289557A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289558A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289559A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289560A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289561A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289562A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289563A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289564A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289565A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289566A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289567A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289568A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289569A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289570A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289571A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289572A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289573A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289574A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289575A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289576A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289577A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289578A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289579A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289580A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289581A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289582A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289583A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289584A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289585A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289586A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289587A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289588A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289589A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289591A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289592A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289593A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289594A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289595A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289596A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289597A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289598A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289599A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289600A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289601A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289602A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289603A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289604A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289605A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289606A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289607A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289608A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289609A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289610A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289611A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289612A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289613A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289614A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289615A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289616A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289617A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289618A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289619A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289620A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289621A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289622A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289623A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289624A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289625A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289626A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289627A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289628A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289629A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289630A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289631A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289632A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289633A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289634A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289635A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289636A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289637A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289638A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289639A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289640A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289641A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289642A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289643A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289644A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289645A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289646A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289647A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289648A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289649A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289650A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289651A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289652A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289653A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289654A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289655A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289656A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289657A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289658A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289659A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289660A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289661A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289662A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289663A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289664A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289665A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289666A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289667A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289668A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289669A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289670A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289671A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289672A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289673A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289674A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289675A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289676A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289677A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289678A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289679A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289680A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289681A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289682A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289683A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289684A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289685A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289686A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289687A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289688A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289689A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289691A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289692A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289693A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289694A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289695A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289696A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289697A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289698A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289699A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289700A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289701A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289702A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289703A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289704A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289705A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289706A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289707A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289708A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289709A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289710A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289711A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289712A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289713A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289714A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289715A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289716A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289717A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289718A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289719A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289720A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289721A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289722A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289723A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289724A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289725A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289726A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289727A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289728A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289729A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289730A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289731A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289732A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289733A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289734A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289735A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289736A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289737A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289738A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289739A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289740A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289741A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289742A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289743A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289744A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289745A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289746A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289747A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289748A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289749A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289750A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289751A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289752A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289753A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289754A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289755A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289756A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289757A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289758A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289760A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289761A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289762A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289763A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289764A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4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t/US4289821A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289822A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289823A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289824A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289825A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289826A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289827A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289828A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289829A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289830A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289831A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289832A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289833A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289834A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289835A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289836A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289837A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289838A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289839A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289840A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289841A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289842A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289843A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289844A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289845A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289846A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289847A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289848A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289849A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289850A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289851A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289852A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289853A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289854A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289855A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289856A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289857A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289858A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289859A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289860A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289861A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289862A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289863A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289864A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289865A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289866A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289867A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289868A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289869A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289870A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289871A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289873A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289874A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289875A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289876A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289877A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289878A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289879A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289880A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289881A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289882A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289883A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289884A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289885A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289886A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289887A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289888A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289889A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289890A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289891A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289892A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289893A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289894A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289895A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289896A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289897A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289898A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289899A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289900A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289901A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289902A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289903A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289904A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289905A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289906A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289907A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289908A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289909A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289910A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289911A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289912A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289913A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289914A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289915A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289916A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289917A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289918A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289919A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289920A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289921A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289923A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289924A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289925A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289926A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289927A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289928A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289929A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289931A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289932A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289933A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep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tgrep.com/patent/US4289989A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289990A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289991A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289992A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289993A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289994A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289995A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289996A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289997A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289998A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4289999A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290000A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290001A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290002A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290003A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290004A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290005A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290006A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290007A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290008A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290009A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290010A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290011A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290012A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290013A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290014A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290015A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290016A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290017A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290018A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290019A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290020A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290021A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290022A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290023A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290024A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290025A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290026A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290027A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290028A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290029A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290030A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290031A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290032A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290033A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290034A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290035A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290036A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290037A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290038A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290039A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290040A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290041A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290042A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4290043A</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://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l><url><loc>https://patentgrep.com/patent/USD260818S</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/USD260819S</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4766P</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30741E</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30742E</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30743E</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30744E</loc><lastmod>1981-09-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4287607A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287608A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287609A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287610A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287611A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287612A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287614A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287615A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287616A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287617A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287618A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287619A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287620A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287621A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287622A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287623A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287624A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287625A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287626A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287627A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287628A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287629A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287630A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287631A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287632A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287633A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287634A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287635A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287636A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287637A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287638A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287639A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287640A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287641A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287642A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287643A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287645A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287646A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287647A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287648A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287649A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287650A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287651A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287652A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287653A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287654A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287655A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287656A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287657A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287658A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287659A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287660A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287661A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287662A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287663A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287664A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287665A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287666A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287667A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287668A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287669A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287670A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287671A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287672A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287673A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287674A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287675A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287676A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287677A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287678A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287679A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287680A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287681A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287682A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287683A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287684A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287685A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287686A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287687A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287688A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287689A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287690A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287691A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287692A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287694A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287695A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287696A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287697A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287698A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287699A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287700A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287701A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287702A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287703A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287704A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287705A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287706A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287707A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287708A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287709A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287710A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287711A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287712A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287713A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287714A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287715A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287716A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287717A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287718A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287719A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287720A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287721A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287722A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287723A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287724A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287725A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287726A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287727A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287728A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287729A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287730A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287731A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287732A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287733A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287734A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287735A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287736A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287737A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287738A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287739A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287740A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287741A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287742A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287743A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287744A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287745A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287746A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287747A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287748A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287749A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287750A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287751A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287752A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287753A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287754A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287755A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287756A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287757A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287758A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287759A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287760A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287761A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287762A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287763A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287764A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287765A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287766A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287767A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287768A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287769A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287770A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287771A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287772A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287773A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287774A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287775A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287776A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287777A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287778A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287779A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287780A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287781A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287782A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287783A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287784A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287785A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287786A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287787A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287788A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287789A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287790A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287791A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287792A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287793A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287794A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287795A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287796A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287797A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287798A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287799A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287800A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287801A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287802A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287803A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287804A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287805A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287806A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287808A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287810A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287811A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287812A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287813A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287814A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287815A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287816A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287817A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287818A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287819A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287820A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287821A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287822A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287823A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287824A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287825A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287826A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287827A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287828A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287829A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287830A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287831A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287832A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287833A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287834A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287835A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287836A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287837A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287838A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287839A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287840A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287841A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287842A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287843A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287844A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287845A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287846A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287847A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287848A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287849A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287850A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287851A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287852A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287853A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287854A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287855A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287856A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287857A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287858A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287859A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287860A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287861A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287862A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287863A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287864A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287865A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287866A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287867A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287868A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287869A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287870A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287871A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287872A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287873A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287874A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287875A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287876A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287877A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287878A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287879A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287880A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287881A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287882A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287883A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287884A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287886A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287887A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287888A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287889A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287890A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287891A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287892A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287893A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287894A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287895A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287896A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287897A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287898A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287899A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287900A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287901A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287902A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287903A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287904A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287905A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287906A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287907A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287908A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287909A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287910A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287911A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287912A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287913A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287914A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287915A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287916A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287917A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287918A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287919A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287920A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287921A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287922A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287923A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287924A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287925A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287926A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287927A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287928A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287929A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287930A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287931A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287932A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287933A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287934A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287935A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287936A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287937A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287938A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287939A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287940A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287941A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287942A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287943A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287944A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287945A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287946A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287947A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287948A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287949A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287950A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287951A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287952A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287953A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287954A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287955A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287956A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287957A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287958A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287959A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287960A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287961A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287962A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287963A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287964A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287965A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287966A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287967A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287968A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287969A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287970A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287971A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287972A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287973A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287974A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287975A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287976A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287977A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287978A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287979A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287980A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287981A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287982A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287983A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287984A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287985A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287986A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287987A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287988A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287989A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287990A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287991A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287992A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287993A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287994A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287995A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287996A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287998A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4287999A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288000A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288001A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288002A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288003A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288004A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288005A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288006A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288007A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288008A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288009A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288010A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288011A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288012A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288013A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288014A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288015A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288016A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288017A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288018A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288019A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288020A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288021A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288022A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288023A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288024A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288025A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288026A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288027A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288028A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288029A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288030A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288031A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288032A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288033A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288034A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288035A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288036A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288037A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288038A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288039A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288040A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288041A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288042A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288043A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288044A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288045A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288046A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288047A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288048A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288049A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288050A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288051A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288052A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288053A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288054A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288055A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288056A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288057A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288058A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288059A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288060A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288061A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288062A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288063A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288064A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288065A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288066A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288067A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288068A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288069A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288070A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288071A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288072A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288073A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288074A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288075A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288076A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288077A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288078A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288079A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288080A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288081A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288083A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288084A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288085A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288086A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288087A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288088A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288089A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288090A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288091A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288092A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288093A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288094A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288095A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288096A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288097A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288098A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288099A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288100A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288101A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288102A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288103A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288104A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288105A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288106A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288107A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288108A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288109A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288110A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288111A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288112A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288113A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288114A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288115A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288116A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288117A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288118A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288119A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288120A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288121A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288122A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288123A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288124A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288125A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288126A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288127A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288128A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288129A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288130A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288131A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288132A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288133A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288134A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288135A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288136A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288137A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288138A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288140A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288141A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288142A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288143A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288144A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288145A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288146A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288147A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288148A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288149A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288150A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288151A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288152A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288153A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288154A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288155A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288156A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288157A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288158A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288159A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288160A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288161A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288162A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288163A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288164A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288165A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288166A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288167A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288168A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288169A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288170A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288171A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288172A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288173A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288174A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288175A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288176A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288177A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288178A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288179A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288180A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288181A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288182A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288183A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288184A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288185A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288186A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288187A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288188A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288189A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288190A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288191A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288192A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288193A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288194A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288195A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288196A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288197A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288198A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288199A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288200A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288201A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288202A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288203A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288204A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288205A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288206A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288207A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288208A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288209A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288210A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288211A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288212A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288213A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288214A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288215A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288216A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288217A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288218A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288219A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288220A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288221A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288222A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288223A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288224A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288225A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288226A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288227A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288228A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288229A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288230A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288231A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288232A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288233A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288234A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288235A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288236A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288237A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288238A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288239A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288240A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288241A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288242A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288243A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288244A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288245A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288246A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288247A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288249A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288250A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288251A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288252A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288253A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288254A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288255A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288256A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288257A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288258A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288259A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288260A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288261A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288262A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288263A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288264A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288265A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288266A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288267A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288268A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.c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rep.com/patent/US4288324A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288325A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288326A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288327A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288328A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288329A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288330A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288331A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288332A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288333A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288334A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288335A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288336A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288337A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288338A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288339A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288340A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288341A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288342A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288343A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288344A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288345A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288346A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288347A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288348A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288349A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288350A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288351A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288352A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288353A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288354A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288355A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288356A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288357A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288358A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288359A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288360A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288361A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288362A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288363A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288364A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288365A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288366A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288367A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288368A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288369A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288370A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288371A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288372A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288373A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288374A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288375A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288376A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288377A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288378A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288379A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288380A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288381A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288382A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288383A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288384A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288385A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288386A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288387A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288388A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288389A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288390A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288391A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288392A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288393A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288394A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288395A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288396A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288397A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288398A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288399A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288400A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288401A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288402A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288403A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288404A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288405A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288406A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288407A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288408A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288409A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288410A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288411A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288412A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288413A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288414A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288415A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288416A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288417A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288418A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288419A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288420A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288421A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288422A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288423A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288424A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288425A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288426A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288427A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288428A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288429A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288430A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288431A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288432A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288433A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https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https://patentgrep.com/patent/US4288489A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288490A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288491A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288492A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288493A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288494A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288495A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288496A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288497A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288498A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288499A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288500A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288501A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288502A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288503A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288504A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288505A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288506A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288507A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288508A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288509A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288510A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288511A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288512A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288513A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288514A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288515A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288516A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288517A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288518A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288519A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288520A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288521A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288522A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288523A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288524A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288525A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288526A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288527A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288528A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288529A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288530A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288531A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288532A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288533A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288534A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288535A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288536A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288537A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288538A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288539A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288540A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288541A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288542A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288543A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288544A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288545A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288546A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288547A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288548A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288549A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288550A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288551A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288552A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288553A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288554A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288555A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288556A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288557A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288558A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288559A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288560A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288561A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288562A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288563A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288564A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288565A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288566A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288567A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288568A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288569A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288570A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288571A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288572A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288573A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288574A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288575A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288576A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288577A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288578A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288579A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288580A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288581A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288582A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288583A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288584A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288585A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288586A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288587A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288588A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288589A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288590A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288591A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288592A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288593A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288594A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288595A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288596A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288597A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288598A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288599A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288600A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288601A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288602A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288603A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288604A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288605A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288606A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288607A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288608A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288609A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288610A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288611A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288612A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288613A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288614A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288615A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288616A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288617A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288618A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288619A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288620A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288621A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288622A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288623A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288624A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288625A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288626A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288627A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288628A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288629A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288630A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288631A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288632A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288633A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288634A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288635A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288636A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288637A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288638A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288639A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288640A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288641A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288642A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288643A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288644A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288645A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288646A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288647A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288648A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288649A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288650A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288651A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288652A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288653A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288654A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288655A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288656A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288657A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288658A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288659A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288660A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288661A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288662A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288663A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288664A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288665A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288666A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288667A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288668A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288669A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288670A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288671A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288672A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288673A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288674A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288675A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288676A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288677A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288678A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288679A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288680A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288681A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288682A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288683A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288684A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288685A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288686A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288687A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288688A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288689A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288690A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288691A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288692A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288693A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288694A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288695A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288696A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288697A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288698A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288699A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288700A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288701A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288702A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288703A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288704A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288705A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288706A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288707A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288708A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288709A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288710A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288711A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288712A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288713A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288714A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288715A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288716A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288717A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288718A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288719A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288720A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288721A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288722A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288723A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288724A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288725A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288726A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288727A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288728A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288729A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288730A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288731A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288732A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288734A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288735A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288736A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288737A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288738A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288739A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288740A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288741A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288742A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288743A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288744A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288745A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288746A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288747A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288748A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288749A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288750A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288751A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288752A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288753A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288754A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288755A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288756A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288757A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288758A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288759A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288760A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288761A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288762A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288763A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288764A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288765A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288766A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288767A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288768A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288769A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288770A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288771A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288772A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288773A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288774A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288775A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288776A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288777A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288778A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288779A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288780A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288782A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288783A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288784A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288785A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288786A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288787A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288788A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288789A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288790A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288791A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288792A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288793A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288794A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288795A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288796A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288797A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288798A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288799A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288800A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288801A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288802A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288803A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288804A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288805A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288806A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288807A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288808A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288810A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288811A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288812A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288813A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288815A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288816A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288817A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288818A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288819A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288820A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288821A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288822A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288823A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288824A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288825A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288826A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288827A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288828A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288829A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288830A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288831A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288832A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288833A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288834A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288835A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288836A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288837A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288838A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288839A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288840A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288842A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288843A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288844A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288845A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288846A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288847A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288848A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288849A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288850A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288851A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288852A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288853A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288854A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288855A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288856A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288857A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288858A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288859A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288860A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288861A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288862A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288863A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288864A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288865A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288866A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288867A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288868A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288869A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288870A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288871A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288872A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288873A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288874A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288875A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4288876A</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260570S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260571S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260572S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260573S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260574S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260575S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260576S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260577S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260578S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260579S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260580S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260581S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260582S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260583S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260584S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260585S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260586S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260587S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260588S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260589S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260590S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260591S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260592S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260593S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260594S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260595S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260596S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260597S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260598S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260599S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260600S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260601S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260602S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260603S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260604S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260605S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260606S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260607S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260608S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260609S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260610S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260611S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260612S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260613S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260614S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260615S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260616S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260617S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260618S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260619S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260620S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260621S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260622S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260623S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260624S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260625S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260626S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260627S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260628S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260629S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260630S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260631S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260632S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260633S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260634S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260635S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260636S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260637S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260638S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260639S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260640S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260641S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260642S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260643S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260644S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260645S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260646S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260647S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260648S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260649S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260650S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260651S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260652S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260653S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260654S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260655S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260656S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260657S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260658S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260659S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260660S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260661S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260662S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260663S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260664S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260665S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260666S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260667S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260668S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260669S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260670S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260671S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260672S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260673S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260674S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260675S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260676S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260677S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260678S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260679S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260680S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260681S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260682S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260683S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260684S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260685S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260686S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260687S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260688S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260689S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260690S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260691S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260692S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260693S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USD260694S</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4764P</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4765P</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30733E</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30734E</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30735E</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30736E</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30737E</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30739E</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30740E</loc><lastmod>1981-09-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4286337A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286338A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286339A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286340A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286341A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286342A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286343A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286344A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286345A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286346A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286347A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286348A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286349A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286350A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286351A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286352A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286353A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286354A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286355A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286356A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286357A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286358A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286359A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286360A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286361A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286362A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286363A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286364A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286365A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286366A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286367A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286368A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286369A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286370A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286371A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286372A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286373A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286374A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286375A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286376A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286377A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286378A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286379A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286380A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286381A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286382A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286383A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286384A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286385A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286386A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286387A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286388A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286389A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286390A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286391A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286392A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286393A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286394A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286395A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286396A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286397A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286398A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286399A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286400A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286401A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286402A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286403A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286404A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286405A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286406A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286407A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286408A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286409A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286410A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286411A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286412A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286413A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286414A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286415A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286416A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286417A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286418A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286419A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286420A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286421A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286422A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286423A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286424A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286425A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286426A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286427A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286428A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286429A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286430A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286431A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286432A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286433A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286434A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286435A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286436A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286437A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286438A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286439A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286440A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286441A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286442A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286443A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286444A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286445A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286446A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286447A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286448A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286449A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286450A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286451A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286452A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286453A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286454A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286455A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286456A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286457A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286458A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286459A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286460A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286461A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286462A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286463A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286464A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286465A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286466A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286467A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286468A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286469A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286470A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286471A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286472A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286473A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286474A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286475A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286476A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286477A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286478A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286479A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286480A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286481A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286482A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286483A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286484A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286485A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286486A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286487A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286488A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286489A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286490A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286491A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286492A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286493A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286494A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286495A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286496A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286498A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286499A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286500A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286501A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286502A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286503A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286504A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286505A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286506A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286507A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286508A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286509A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286510A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286511A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286512A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286513A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286514A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286515A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286516A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286517A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286518A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286519A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286520A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286521A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286522A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286523A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286524A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286525A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286526A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286527A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286528A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286529A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286530A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286531A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286532A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286533A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286534A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286535A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286536A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286537A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286538A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286539A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286540A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286541A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286542A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286543A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286544A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286545A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286546A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286547A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286548A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286549A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286550A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286551A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286552A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286553A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286554A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286555A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286556A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286557A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286558A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286559A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286560A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286561A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286562A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286563A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286564A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286565A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286566A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286567A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286568A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286569A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286570A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286571A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286572A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286573A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286574A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286575A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286576A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286577A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286578A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286579A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286580A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286581A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286582A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286583A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286584A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286586A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286587A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286588A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286589A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286590A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286591A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286593A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286594A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286595A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286596A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286597A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286598A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286599A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286600A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286601A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286602A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286603A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286605A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286606A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286607A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286608A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286609A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286610A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286611A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286612A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286613A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286614A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286615A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286616A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286617A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286618A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286619A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286620A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286621A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286622A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286623A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286624A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286625A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286626A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286627A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286628A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286629A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286630A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286631A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286632A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286633A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286634A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286635A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286637A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286638A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286639A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286640A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286641A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286642A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286643A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286644A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286645A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286646A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286647A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286648A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep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tgrep.com/patent/US4286704A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286705A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286706A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286707A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286708A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286709A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286710A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286711A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286712A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286713A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286714A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286715A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286716A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286717A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286718A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286719A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286720A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286721A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286722A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286723A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286724A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286725A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286726A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286727A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286728A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286729A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286730A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286731A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286732A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286733A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286734A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286735A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286736A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286737A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286738A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286739A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286740A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286741A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286742A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286743A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286744A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286745A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286746A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286747A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286748A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286749A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286750A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286751A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286752A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286753A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286754A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286755A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286756A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286757A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286758A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://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ps://patentgrep.com/patent/US4286815A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286816A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286817A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286818A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286819A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286820A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286821A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286822A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286823A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286824A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286825A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286826A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286827A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286828A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286829A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286830A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286831A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286832A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286833A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286834A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286835A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286836A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286837A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286838A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286839A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286840A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286841A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286842A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286843A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286844A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286845A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286846A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286847A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286848A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286849A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286850A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286851A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286852A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286853A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286854A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286855A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286856A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286857A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286858A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286859A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286860A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286861A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286862A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286863A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286864A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286865A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286866A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286867A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286868A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286869A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286870A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286871A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286872A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286873A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286874A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286875A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286876A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286877A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286878A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286879A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286880A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286881A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286882A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286883A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286884A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286885A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286886A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286887A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286888A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286889A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286890A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286891A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286892A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286893A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286894A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286895A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286896A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286897A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286898A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286899A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286900A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286901A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286902A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286903A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286904A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286906A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286907A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286908A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286909A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286910A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286911A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286912A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286913A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286914A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286915A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286916A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286917A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286918A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286919A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286920A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286921A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286922A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286923A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286924A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286925A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286926A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286927A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286928A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286929A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286930A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286931A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286932A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286933A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286934A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286935A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286936A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286937A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286938A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286939A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286940A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286941A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286942A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286943A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286944A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286945A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286946A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286947A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286948A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286949A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286950A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286951A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286952A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286953A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286954A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286955A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286956A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286957A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286958A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286959A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286960A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286961A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286962A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286963A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286964A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286965A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286966A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286967A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286968A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286969A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286970A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286971A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286972A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286973A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286974A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286975A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286976A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286977A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286978A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286979A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286980A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286981A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286982A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286983A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286984A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286986A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286987A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286988A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286989A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286990A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286991A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286992A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286993A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286994A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286995A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286996A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286997A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286998A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4286999A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287000A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287001A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287002A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287003A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287004A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287005A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287006A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287007A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287008A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287009A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287010A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287011A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287012A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287013A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287014A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287015A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287016A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287017A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287018A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287019A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287020A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287021A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287022A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287023A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287025A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287026A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287027A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287028A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287029A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287030A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287031A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287032A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287033A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287034A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287035A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287036A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287037A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287038A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287039A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287040A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287041A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287042A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287043A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287044A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287045A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287046A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287048A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287049A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287050A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287051A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287052A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287053A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287054A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287055A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287056A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287057A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287058A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287059A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287060A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287061A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287062A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287063A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287064A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287065A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287066A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287067A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287068A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287069A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287070A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287071A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287072A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287073A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287074A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287075A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287076A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287077A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287078A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287079A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287080A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287081A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287082A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287083A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287084A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287085A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287086A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287087A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287088A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287089A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287090A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287091A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287092A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287093A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287094A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287095A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287096A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287097A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287098A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287099A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287100A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287101A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287102A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287103A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287104A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287105A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287106A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287107A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287108A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287109A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287110A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287111A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287112A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287113A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287114A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287115A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287116A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287117A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287118A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287119A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287120A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287121A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287122A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287123A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287124A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287125A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287126A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287127A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287128A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287129A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287130A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287131A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287132A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287133A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287134A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287135A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287136A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287137A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287138A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287139A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287140A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287141A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287142A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287143A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287144A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287145A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287146A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287147A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287148A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287149A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287150A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287151A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287152A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287153A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287154A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287155A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287156A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287157A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287158A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287159A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287160A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287161A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287162A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287163A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287164A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287165A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287166A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287167A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287168A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287169A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287170A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287171A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287172A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287173A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287174A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287175A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287176A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287177A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287178A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287179A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287180A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287181A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287182A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287183A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287184A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287185A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287186A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287187A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287188A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287189A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287190A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287191A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287192A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287193A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287194A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287195A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287196A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287197A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287198A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287199A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287201A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287202A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287203A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287204A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287205A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287206A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287207A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287208A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287209A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287210A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287211A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287212A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287213A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287214A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287215A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287216A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287217A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287218A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287219A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287220A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287221A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287222A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287223A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287224A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287225A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287226A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287227A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287228A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287229A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287230A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287231A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287232A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287233A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287234A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287235A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287236A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287237A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287238A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287239A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287240A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287241A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287242A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287243A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287244A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287245A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287246A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287247A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287248A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287249A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287251A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287252A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287253A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287254A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287255A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287256A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287257A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287258A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287259A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287260A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287261A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287262A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287263A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287264A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287265A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287266A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287267A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287268A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287269A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287270A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287271A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287272A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287273A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287274A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287275A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287276A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287277A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287278A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287279A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287280A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287281A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287282A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287283A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287284A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287285A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287286A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287287A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287288A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287289A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287290A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287291A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287292A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287293A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287294A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287295A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287296A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287297A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287298A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287299A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287300A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287301A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287302A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287303A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287304A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287305A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287306A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287307A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287308A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287309A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287310A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287311A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287312A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287313A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287314A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287315A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287316A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287317A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287318A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287319A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287320A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287321A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287322A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287323A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287324A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287325A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287326A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287327A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287328A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287329A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287330A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287331A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287332A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287333A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287334A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287335A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287336A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287337A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287338A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287339A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287340A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287341A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287342A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287343A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287344A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287345A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287346A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287347A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287348A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287349A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287350A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287351A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287352A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287353A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287354A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287355A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287356A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287357A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287358A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287359A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287360A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287361A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287362A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287363A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287364A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287365A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287366A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287367A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287368A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287369A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287370A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287371A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287372A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287373A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287374A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287375A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287376A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287377A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287378A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287379A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287380A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287381A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287382A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287383A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287384A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287385A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287386A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287387A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287388A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287389A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287390A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287391A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287392A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287393A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287394A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287395A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287396A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287397A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287398A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287399A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287401A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287402A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287403A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287404A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287405A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287406A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287407A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287408A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287409A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287410A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287411A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287412A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287413A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287414A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287415A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287416A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287417A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287418A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287419A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287420A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287421A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287422A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287423A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287424A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287425A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287426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/US4287538A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287539A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287540A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287541A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287542A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287543A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287544A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287545A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287547A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287548A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287549A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287550A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287551A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287552A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287553A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287554A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287555A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287556A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287557A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287558A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287559A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287560A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287561A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287562A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287563A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287564A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287565A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287566A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287567A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287568A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287569A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287571A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287572A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287573A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287574A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287575A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287576A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287577A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287578A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287579A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287580A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287581A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287582A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287583A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287584A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287585A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287586A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287587A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287588A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287589A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287590A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287591A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287593A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287594A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4287595A</loc><lastmod>1981-09-01</lastmod></url><url><loc>https://patentgrep.com/p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rl><loc>https://patentgrep.com/patent/US4285249A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285250A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285251A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285252A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285253A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285254A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285255A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285256A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285257A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285258A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285259A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285260A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285261A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285262A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285263A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285264A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285265A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285266A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285267A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285268A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285269A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285270A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285271A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285272A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285273A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285274A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285275A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285276A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285277A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285278A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285279A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285280A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285281A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285282A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285283A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285284A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285285A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285286A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285287A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285288A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285289A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285290A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285291A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285292A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285293A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285294A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285295A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285296A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285297A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285298A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285299A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285300A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285301A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285302A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285303A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285304A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285305A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285306A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285307A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285308A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285309A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285310A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285311A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285312A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285313A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285314A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285315A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285316A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285317A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285318A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285319A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285320A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285321A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285322A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285323A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285324A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285325A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285326A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285327A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285328A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285329A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285330A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285331A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285332A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285333A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285334A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285335A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285336A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285337A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285338A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285339A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285340A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285341A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285342A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285344A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285345A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285346A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285348A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285349A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285350A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285351A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285352A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285353A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285354A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285355A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285356A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285357A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285358A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285359A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285360A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285361A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285362A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285363A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285364A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285365A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285366A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285367A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285368A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285369A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285370A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285371A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285372A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285373A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285374A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285375A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285376A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285377A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285378A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285379A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285380A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285381A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285382A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285383A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285384A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285385A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285386A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285387A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285388A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285389A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285390A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285391A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285392A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285393A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285394A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285395A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285396A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285397A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285398A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285399A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285400A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285401A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285402A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285403A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285404A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285405A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285406A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285407A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285408A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285409A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285410A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285411A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285412A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285413A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285414A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285415A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285416A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285417A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285418A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285419A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285420A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285421A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285422A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285423A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285424A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285425A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285426A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285427A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285428A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285429A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285430A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285431A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285432A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285433A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285434A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285435A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285436A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285437A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285438A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285439A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285440A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285441A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285442A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285443A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285444A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285445A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285446A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285447A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285448A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285449A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285450A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285451A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285452A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285453A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285454A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285455A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285456A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285457A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285458A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285459A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285460A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285461A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285462A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285463A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285465A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285466A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285467A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285468A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285469A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285470A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285471A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285472A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285473A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285474A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285475A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285476A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285477A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285478A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285479A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285480A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285481A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285482A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285483A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285484A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285485A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285486A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285487A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285488A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285489A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285490A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285491A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285492A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285493A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285494A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285495A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285496A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285497A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285498A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285499A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285500A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285501A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285502A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285503A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285504A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285505A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285506A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285507A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285508A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285509A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285510A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285511A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285512A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285513A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285514A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285515A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285516A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285517A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285518A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285519A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285520A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285521A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285522A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285523A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285524A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285525A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285526A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285527A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285528A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285529A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285530A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285531A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285532A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285533A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285534A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285535A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285536A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285537A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285538A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285539A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285540A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285541A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285542A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285543A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285544A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285545A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285546A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285548A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285549A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285550A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285551A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285552A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285553A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285554A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285555A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285556A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285557A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285558A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285559A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285560A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285561A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285562A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285563A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285565A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285566A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285567A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285568A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285569A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285570A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285571A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285572A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285573A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285574A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285575A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285576A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285577A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285578A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285579A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285580A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285581A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285582A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285583A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285584A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285585A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285586A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285587A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285588A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285589A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285590A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285591A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285592A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285593A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285594A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285595A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285596A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285597A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285598A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285599A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285600A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285601A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285602A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285603A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285604A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285605A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285606A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285607A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285608A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285609A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285610A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285611A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285612A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285613A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285614A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285615A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285616A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285617A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285619A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285620A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285621A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285622A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285623A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285624A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285625A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285626A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285627A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285628A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285629A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285630A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285631A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285632A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285633A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285634A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285635A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285636A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285637A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285638A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285639A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285640A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285641A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285642A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285643A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285644A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285645A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285646A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285647A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285648A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285649A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285650A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285651A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285652A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285653A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285654A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285655A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285656A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285657A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285658A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285659A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285660A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285661A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285662A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285663A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285664A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285665A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285666A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285667A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285668A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285669A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285670A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285671A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285672A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285673A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285674A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285675A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285676A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285677A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285678A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285679A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285680A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285681A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285682A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285683A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285684A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285685A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285686A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285687A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285688A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285689A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285690A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285691A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285692A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285693A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285694A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285695A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285696A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285697A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285698A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285699A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285700A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285701A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285702A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285703A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285704A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285705A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285706A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285707A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285708A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285709A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285710A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285711A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285712A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285713A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285714A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285715A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285716A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285717A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285718A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285719A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285720A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285721A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285722A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285723A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285724A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285725A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285726A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285727A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285728A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285729A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285730A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285731A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285732A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285733A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285734A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285735A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285736A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285737A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285738A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285739A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285740A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285741A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285742A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285743A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285744A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285745A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285746A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285747A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285748A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285749A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285750A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285751A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285752A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285753A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285754A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285755A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285756A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285757A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285758A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285759A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285760A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285761A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285762A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285763A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285764A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285765A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285766A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285767A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285768A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285769A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285770A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285771A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285773A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285774A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285775A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285776A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285777A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285778A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285779A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285780A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285781A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285782A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285783A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285784A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285785A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285786A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285787A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285788A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285789A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285790A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285791A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285792A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285793A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285794A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285795A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285796A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285797A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285798A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285799A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285800A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285802A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285803A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285804A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285805A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4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t/US4285862A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285863A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285864A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285865A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285866A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285867A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285868A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285869A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285870A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285871A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285872A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285873A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285874A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285875A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285876A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285877A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285878A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285879A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285880A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285881A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285882A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285883A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285884A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285885A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285886A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285887A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285888A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285889A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285890A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285891A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285892A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285893A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285894A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285895A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285896A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285897A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285898A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285899A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285900A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285901A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285902A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285903A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285904A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285905A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285906A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285907A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285908A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285909A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285910A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285911A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285912A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285913A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285914A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285915A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285916A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285917A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285918A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285919A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285920A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285921A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285922A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285923A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285924A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285925A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285926A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285927A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285928A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285929A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285930A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285931A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285932A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285933A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285934A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285935A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285936A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285937A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285938A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285939A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285940A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285941A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285942A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285943A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285944A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285945A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285946A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285947A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285948A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285949A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285950A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285951A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285952A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285953A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285954A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285955A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285956A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285957A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285958A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285959A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285960A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285961A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285962A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285963A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285964A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285965A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285966A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285967A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285968A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285969A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285970A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4285971A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep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tgrep.com/patent/US4286028A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286029A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286030A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286031A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286032A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286034A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286035A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286036A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286037A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286038A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286040A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286041A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286042A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286043A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286044A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286045A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286046A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286047A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286048A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286049A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286050A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286051A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286052A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286053A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286054A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286055A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286056A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286057A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286058A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286059A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286060A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286061A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286062A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286063A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286064A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286065A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286066A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286067A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286068A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286069A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286070A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286071A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286072A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286073A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286074A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286075A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286076A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286077A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286078A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286079A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286080A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286081A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286083A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286084A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286085A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://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ps://patentgrep.com/patent/US4286141A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286142A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286143A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286144A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286145A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286146A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286147A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286148A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286149A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286150A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286151A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286152A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286153A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286154A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286155A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286156A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286157A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286158A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286159A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286160A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286161A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286162A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286163A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286164A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286165A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286166A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286167A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286168A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286169A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286170A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286171A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286172A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286173A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286174A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286175A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286176A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286177A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286178A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286179A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286180A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286181A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286182A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286183A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286184A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286185A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286186A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286187A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286188A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286189A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286190A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286191A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286192A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286193A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286194A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286195A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286196A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286197A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286198A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286199A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286200A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286201A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286202A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286203A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286204A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286205A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286206A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286207A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286208A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286209A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286210A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286211A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286212A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286213A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286214A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286215A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286216A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286217A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286218A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286219A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286220A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286221A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286222A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286223A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286224A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286225A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286226A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286227A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286228A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286229A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286230A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286231A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286232A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286233A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286234A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286235A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286236A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286237A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286238A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286239A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286240A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286241A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286242A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286243A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286244A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286245A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286246A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286247A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286248A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286249A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286250A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286251A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286252A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286253A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286254A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286256A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286257A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286258A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286259A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286260A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286261A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286262A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286263A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286264A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286265A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286266A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286267A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286268A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286270A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286271A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286272A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286273A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286274A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286275A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286276A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286277A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286278A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286279A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286280A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286282A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286283A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286284A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286285A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286286A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286287A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286288A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286289A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286290A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286291A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286292A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286293A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286294A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286295A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286296A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286297A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286298A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286299A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286300A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286301A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286302A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286304A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286305A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286306A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286307A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286308A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286309A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286310A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286312A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286313A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286314A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286315A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286316A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286317A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286318A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286319A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286320A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286321A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286322A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286323A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286324A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286325A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286326A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286327A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286328A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286329A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286330A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286332A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286333A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286334A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286335A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4286336A</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260320S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260321S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260322S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260323S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260324S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260325S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260326S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260327S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260328S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260329S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260330S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260331S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260332S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260333S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260334S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260335S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260336S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260337S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260338S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260339S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260340S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260341S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260342S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260343S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260344S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260345S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260346S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260347S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260348S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260349S</loc><lastmod>1981-08-25</lastmod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stmod></url><url><loc>https://patentgrep.com/patent/USD260405S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260406S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260407S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260408S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260409S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260410S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260411S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260412S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260413S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260414S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260415S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260416S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260417S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260418S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260419S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260420S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260421S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260422S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260423S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260424S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260425S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260426S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260427S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260428S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260429S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260430S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260431S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260432S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260433S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260434S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260435S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260436S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260437S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260438S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260439S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260440S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260441S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260442S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260443S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USD260444S</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4760P</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4761P</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30717E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30718E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30719E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30720E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30721E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30722E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30723E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30724E</loc><lastmod>1981-08-25</lastmod></url><url><loc>https://patentgrep.com/patent/US4283797A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283798A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283799A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283800A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283801A</loc><lastmod>1981-08-18<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8-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283857A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283858A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283859A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283860A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283861A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283862A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283863A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283864A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283865A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283866A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283867A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283868A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283869A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283870A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283871A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283872A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283873A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283874A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283875A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283876A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283877A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283878A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283879A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283880A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283881A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283882A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283883A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283884A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283885A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283886A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283887A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283888A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283889A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283890A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283891A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283893A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283894A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283895A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283896A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283897A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283898A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283899A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283900A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283901A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283902A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283903A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283904A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283905A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283906A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283907A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283908A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283909A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283910A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283911A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283912A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283913A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283914A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283915A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283916A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283917A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283918A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283919A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283920A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283921A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283922A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283923A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283924A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283925A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283926A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283927A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283928A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283929A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283930A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283931A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283932A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283933A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283934A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283935A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283936A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283937A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283938A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283939A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283940A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283941A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283942A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283943A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283944A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283945A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283946A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283947A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283948A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283949A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283950A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283951A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283952A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283953A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283954A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283955A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283956A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283957A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283958A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283959A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283960A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283961A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283962A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283963A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283964A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283965A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283966A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283967A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283968A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283969A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283970A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283971A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283972A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283973A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283974A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283975A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283976A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283977A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283978A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283979A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283980A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283981A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283982A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283983A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283984A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283985A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283986A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283987A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283988A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283989A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283990A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283991A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283992A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283993A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283994A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283995A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283996A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283997A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283998A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4283999A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284000A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284001A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284002A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284003A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284004A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284005A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284006A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284007A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284008A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284009A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284010A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284011A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284012A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284013A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284014A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284015A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284016A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284017A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284018A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284019A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284020A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284021A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284022A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284023A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284024A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284025A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284026A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284027A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284028A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284029A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284030A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284031A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284032A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284034A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284035A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284036A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284037A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284038A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284039A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284040A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284041A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284042A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284043A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284044A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284045A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284046A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284047A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284048A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284049A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284050A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284051A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284052A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284053A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284054A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284055A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284056A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284057A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284058A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284059A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284060A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284061A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284062A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284063A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284064A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284065A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284066A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284067A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284068A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284069A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284070A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284071A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284072A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284073A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284074A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284075A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284076A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284077A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284078A<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135A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284136A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284137A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284138A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284139A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284140A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284141A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284142A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284143A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284144A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284145A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284146A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284147A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284148A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284149A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284150A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284151A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284152A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284153A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284154A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284155A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284156A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284157A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284158A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284159A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284160A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284161A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284162A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284163A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284164A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284165A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284166A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284167A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284168A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284169A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284170A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284171A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284172A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284173A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284175A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284176A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284177A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284178A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284179A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284180A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284181A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284182A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284183A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284184A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284185A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284186A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284187A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284188A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284189A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284190A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/U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ent/US4284247A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284248A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284249A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284250A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284251A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284252A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284253A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284254A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284255A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284256A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284257A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284258A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284259A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284260A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284261A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284262A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284263A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284264A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284265A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284266A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284267A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284268A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284269A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284270A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284271A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284272A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284273A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284274A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284275A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284276A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284277A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284278A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284279A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284280A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284281A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284282A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284283A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284284A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284285A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284286A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284287A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284288A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284289A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284290A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284291A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284292A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284293A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284294A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284295A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284296A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284297A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284298A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284299A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284300A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284301A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284302A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284303A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284304A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284305A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284306A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284307A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284308A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284309A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284310A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284311A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284312A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284313A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284314A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284315A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284316A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284317A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284318A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284319A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284320A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284321A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284322A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284323A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284324A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284325A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284326A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284327A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284328A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284329A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284330A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284331A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284332A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284333A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284334A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284335A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284336A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284337A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284338A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284339A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284341A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284342A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284343A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284344A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284345A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284346A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284347A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284348A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284349A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284350A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284351A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284352A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284353A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284354A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284355A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284356A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284357A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284358A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284359A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284360A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284361A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284362A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284363A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284364A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284365A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284366A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284367A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284368A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284369A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284370A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284371A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284372A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284373A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284374A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284375A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284376A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284377A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284378A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284379A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284380A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284381A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284382A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284383A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284384A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284385A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284386A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284387A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284388A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284389A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284390A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284391A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284392A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284393A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284394A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284395A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284396A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284397A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284398A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284400A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284401A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284402A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284403A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284404A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284405A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284406A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284407A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284408A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284409A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284410A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284411A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284413A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284414A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://pat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url><loc>https://patentgrep.com/patent/US4284637A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284638A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284639A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284640A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284641A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284642A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284643A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284644A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284645A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284646A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284647A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284648A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284649A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284650A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284651A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284652A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284653A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284654A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284655A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284656A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284657A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284658A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284659A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284660A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284661A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284662A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284663A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284664A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284665A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284666A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284667A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284668A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284669A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284670A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284672A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284673A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284674A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284675A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284676A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284677A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284678A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284679A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284680A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284681A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284683A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284684A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284685A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284686A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284687A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284688A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284689A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284690A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284691A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284692A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284693A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284694A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284695A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284696A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284697A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284698A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284699A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284700A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284701A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284702A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284703A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284704A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284705A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284706A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284707A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284708A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284709A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284710A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284711A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284712A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284713A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284714A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284715A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284716A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284717A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284718A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284719A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284720A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284721A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284722A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284723A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284724A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284725A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284726A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284727A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284728A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284730A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284731A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284732A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284733A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284734A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284735A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284736A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284737A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284738A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284739A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284740A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284741A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284742A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284743A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284744A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284745A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284746A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284747A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284748A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284749A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284750A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284751A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284752A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284753A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284754A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284755A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284756A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284757A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284758A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284759A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284760A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284761A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284762A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284763A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284764A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284765A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284766A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284767A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284768A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284769A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284770A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284771A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284772A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284773A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284774A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284775A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284776A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284777A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284778A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284779A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284780A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284781A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284782A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284783A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284784A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284785A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284786A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284787A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284788A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284789A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284790A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284791A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284792A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284793A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284794A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284795A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284796A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284797A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284798A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284799A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284800A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284801A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284802A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284803A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284804A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284805A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284806A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284807A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284808A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284809A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284810A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284811A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284812A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284813A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284814A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284815A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284816A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284817A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284818A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284819A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284820A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284821A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284822A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284823A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284824A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284825A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284826A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284827A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284828A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284829A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284830A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284831A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284832A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284833A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284834A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284835A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284836A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284837A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284838A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284839A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284840A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284841A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284842A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284843A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284844A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284845A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284846A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284847A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284848A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284850A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284851A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284852A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284853A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284854A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284855A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284857A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284858A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284859A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284860A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284861A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284862A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284863A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284864A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284865A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284866A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284867A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284868A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284869A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284870A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284871A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284872A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284873A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284874A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284875A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284876A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284877A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284878A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284879A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284880A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284881A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284882A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284883A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284884A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284885A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284886A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284887A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284888A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284889A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284890A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284891A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284892A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284893A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284894A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284895A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284896A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284897A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284898A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284899A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284900A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284901A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284902A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284903A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284904A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284905A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284906A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284907A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284908A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284909A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284910A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284911A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284912A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284913A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284914A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284915A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284916A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284917A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284918A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284919A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284920A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284921A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284922A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284923A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284924A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284925A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284926A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284927A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284928A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284929A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284930A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284931A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284932A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284933A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284934A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284935A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284936A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284937A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284938A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284939A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284940A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284941A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284942A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284943A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284944A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284945A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284946A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284947A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284948A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284949A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284950A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284951A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284952A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284953A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284954A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284955A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284956A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284957A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284958A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284959A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284960A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284961A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284962A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284963A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284964A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284965A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284966A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284967A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284968A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284969A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284970A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284971A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284972A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284973A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284974A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284975A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284977A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284978A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284979A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284980A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284981A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284982A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284983A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284984A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284985A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284986A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284987A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284988A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284989A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284990A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284991A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284992A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284993A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284994A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284995A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284996A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284997A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284998A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4284999A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285000A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285001A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285002A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285003A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285004A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285005A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285006A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285007A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285008A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285009A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285010A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285011A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285012A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285013A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285014A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285015A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285016A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285017A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285018A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285019A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285020A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285021A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285022A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285023A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285024A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285025A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285026A</loc><lastmod>1981-08-18</lastmod></url><url><loc>https://patentgrep.com/patent/US4285027A</loc><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/US4282655A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282656A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282658A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282659A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282660A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282661A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282662A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282663A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282664A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282665A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282666A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282667A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282668A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282669A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282670A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282671A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282672A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282673A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282674A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282675A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282676A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282677A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282678A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282679A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282680A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282682A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282683A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282684A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282685A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282686A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282687A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282688A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282689A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282690A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282691A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282692A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282693A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282694A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282695A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282696A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282697A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282698A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282699A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282700A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282701A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282702A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282703A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282704A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282705A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282706A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282707A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282708A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282709A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282710A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282711A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282712A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282713A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282714A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282715A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282716A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282717A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282718A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282719A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282720A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282721A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282722A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282723A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282724A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282725A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282726A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282727A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282728A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282729A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282730A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282731A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282732A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282733A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282734A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282735A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282736A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282737A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282738A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282739A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282740A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282741A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282742A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282743A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282744A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282745A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282746A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282747A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282748A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282749A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282750A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282751A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282752A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282753A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282754A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282755A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282756A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282757A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282758A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282759A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282760A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282761A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282762A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282763A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282764A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282765A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282766A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282767A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282768A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282769A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282770A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282771A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282772A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282773A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282774A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282775A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282776A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282777A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282778A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282779A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282780A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282781A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282782A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282783A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282784A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282785A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282786A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282787A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282788A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282789A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282790A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282791A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282792A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282793A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282794A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282795A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282796A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282797A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282798A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282799A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282800A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282801A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282802A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282803A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282804A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282805A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282806A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282807A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282808A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282809A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282810A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282811A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282812A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282813A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282814A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282815A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282816A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282817A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282818A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282819A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282820A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282821A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282822A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282823A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282824A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282825A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282826A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282827A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282828A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282829A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282830A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282831A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282832A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282833A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282834A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282835A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282836A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282837A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282838A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282839A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282840A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282841A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282842A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282843A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282844A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282845A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282846A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282847A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282848A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282849A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282850A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282851A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282852A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282853A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282854A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282855A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282856A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282857A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282858A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282859A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282860A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282861A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282862A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282863A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282864A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282865A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282866A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282867A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282868A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282869A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282870A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282871A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282873A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282874A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282877A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282878A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282879A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://p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s://patentgrep.com/patent/US4282936A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282937A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282938A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282939A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282940A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282941A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282942A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282943A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282944A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282945A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282946A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282947A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282948A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282949A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282950A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282951A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282952A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282953A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282955A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282956A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282957A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282958A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282959A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282960A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282961A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282962A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282963A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282964A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282965A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282966A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282967A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282968A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282969A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282970A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282971A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282972A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282973A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282974A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282975A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282976A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282977A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282978A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282979A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282980A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282981A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282982A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282983A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282984A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282985A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282986A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282987A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282989A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282990A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282991A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282992A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282993A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282994A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282995A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282996A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282997A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282998A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4282999A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283000A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283001A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283002A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283003A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283004A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283005A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283006A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283007A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283008A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283009A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283010A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283012A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283013A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283014A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283015A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283016A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283017A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283018A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283019A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283020A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283021A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283022A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283023A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283024A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283025A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283026A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283027A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283028A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283029A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283030A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283031A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283032A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283033A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283034A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283035A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283036A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283037A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283038A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283039A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283040A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283041A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283042A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283043A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283044A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283045A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283046A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283047A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283048A</loc><lastmod>1981-08-11</lastmod></url><url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><url><loc>https://patentgrep.com/patent/US4283104A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283105A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283106A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283107A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283108A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283109A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283110A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283111A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283112A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283113A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283114A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283115A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283116A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283117A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283118A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283119A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283120A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283121A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283122A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283123A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283124A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283125A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283126A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283128A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283129A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283130A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283131A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283132A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283133A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283134A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283135A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283136A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283137A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283138A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283139A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283140A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283141A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283142A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283143A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283144A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283145A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283146A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283147A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283148A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283149A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283150A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283151A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283152A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283153A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283154A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283155A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283156A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283157A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283158A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283159A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283160A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283161A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283162A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283163A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283164A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283165A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283166A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283167A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283168A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283169A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283170A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283171A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283172A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283173A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283174A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283175A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283176A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283177A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283178A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283179A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283180A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283181A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283182A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283183A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283184A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283185A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283186A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283187A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283188A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283189A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283190A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283191A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283192A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283194A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283195A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283196A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283197A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283198A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283199A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283200A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283201A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283202A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283203A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283204A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283205A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283206A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283207A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283208A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283209A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283210A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283211A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283212A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283213A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283214A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283215A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283216A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283217A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283218A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283219A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283220A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283221A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283222A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283223A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283224A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283225A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283226A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283227A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283228A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283229A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283230A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283231A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283232A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283233A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283234A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283235A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283236A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283237A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283238A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283239A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283240A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283241A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283242A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283243A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283244A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283245A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283246A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283247A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283248A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283249A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283250A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283251A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283252A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283253A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283254A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283255A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283256A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283257A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283258A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283259A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283260A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283261A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283262A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283263A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283264A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283265A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283266A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283267A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283268A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283269A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283270A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283271A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283272A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283273A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283274A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283275A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283276A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283277A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283278A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283279A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283280A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283281A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283282A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283283A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283284A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283285A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283286A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283287A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283288A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283289A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283290A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283291A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283292A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283293A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283294A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283296A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283297A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283298A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283299A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283300A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283301A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283302A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283303A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283304A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283305A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283306A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283307A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283308A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283309A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283310A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283311A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283312A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283313A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283314A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283315A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283316A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283317A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283318A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283319A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283320A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283321A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283322A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283324A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283325A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283326A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283327A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283328A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283329A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283330A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283331A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283332A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283333A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283334A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283335A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283336A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283337A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283338A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283339A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283340A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283341A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283342A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283343A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283344A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283345A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283346A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283347A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283348A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283349A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283350A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283351A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283352A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283353A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283354A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283355A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283356A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283357A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283358A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283359A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283360A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283361A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283362A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283363A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283364A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283365A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283366A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283367A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283368A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283369A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283370A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283371A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283372A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283373A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283374A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283375A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283376A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283377A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283378A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283379A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283380A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283381A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283382A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283383A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283384A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283385A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283386A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283387A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283388A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283389A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283390A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283391A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283392A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283393A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283394A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283395A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283396A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283397A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283398A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283399A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283400A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283401A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283402A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283403A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283404A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283405A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283406A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283407A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283408A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283409A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283410A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283411A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283412A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283413A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283414A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283415A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283416A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283417A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283418A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283419A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283420A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283421A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283422A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283423A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283424A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283425A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283426A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283428A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283429A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283430A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283431A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283432A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283433A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283434A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283435A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283436A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283437A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283438A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283439A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283440A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283441A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283442A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283443A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283444A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283445A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283446A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283447A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283448A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283449A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283450A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283451A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283452A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283453A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283454A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283455A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283456A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283457A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283458A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283459A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283460A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283461A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283462A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283463A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283464A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283465A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283466A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283467A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283468A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283469A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283470A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283471A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283472A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283473A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283474A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283475A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283476A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283477A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283478A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283479A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283480A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283481A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283482A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283483A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283484A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283485A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283486A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283487A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283488A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283489A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283490A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283491A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283492A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283493A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283494A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283495A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283496A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283497A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283498A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283499A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283500A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283501A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283502A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283503A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283504A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283505A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283506A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283507A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283508A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283509A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283510A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283511A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283512A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283513A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283514A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283515A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283516A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283517A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283518A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283519A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283520A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283521A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283522A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283523A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283524A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283525A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283526A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283527A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283528A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283529A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283530A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283531A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283532A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283533A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283534A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283535A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283536A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283537A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283538A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283539A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283540A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283541A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283542A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283543A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283544A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283545A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283546A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283547A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283548A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3604A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283605A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283606A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283607A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283608A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283609A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283610A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283611A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283612A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283613A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283614A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283615A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283616A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283617A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283618A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283619A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283620A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283621A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283622A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283623A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283624A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283625A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283626A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283627A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283628A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283629A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283630A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283631A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283632A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283633A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283634A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283635A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283636A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283637A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283638A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283639A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283640A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283641A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283642A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283644A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283645A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283646A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283647A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283648A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283649A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283650A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283651A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283652A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283653A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283654A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283655A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283656A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283657A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283658A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283659A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283660A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283661A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283662A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283663A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283664A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283665A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283666A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283667A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283668A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283669A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283670A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283671A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283672A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283673A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283674A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283675A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283676A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283677A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283678A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283679A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283680A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283681A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283682A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283683A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283684A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283685A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283686A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283687A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283688A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283689A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283690A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283691A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283692A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283693A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283694A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283695A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283696A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283697A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283698A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283699A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283700A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283701A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283702A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283703A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283704A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283705A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283706A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283707A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283710A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283711A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283712A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283714A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283715A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283716A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283717A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283718A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283719A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283720A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283721A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283722A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283723A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283724A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283725A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283726A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283727A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283728A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283729A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283730A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283731A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283732A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283733A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283734A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283735A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283736A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283737A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283738A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283739A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283740A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283741A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283742A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283743A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283744A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283745A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283746A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283747A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283748A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283749A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283750A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283751A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283752A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283753A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283754A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283755A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283756A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283757A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283758A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283759A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283760A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283761A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283762A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283763A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283764A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283765A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283766A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283767A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283768A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283769A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283770A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283771A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.com/patent/US4283772A</loc><lastmod>1981-08-11</lastmod></url><url><loc>https://patentgrep.c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loc>https://patentgrep.com/patent/US4281586A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281587A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281588A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281589A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281590A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281591A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281592A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281593A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281594A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281595A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281596A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281597A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281598A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281599A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281600A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281601A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281602A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281603A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281604A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281605A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281606A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281607A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281608A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281609A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281610A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281611A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281612A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281613A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281614A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281615A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281616A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281617A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281618A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281619A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281620A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281621A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281622A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281623A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281624A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281625A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281626A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281627A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281628A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281629A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281630A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281631A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281632A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281633A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281634A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281635A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281636A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281637A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281638A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281639A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281640A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281641A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281642A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281643A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281644A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281647A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281648A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281650A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281651A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281652A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281653A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281655A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281656A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281657A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281658A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281659A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281660A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281661A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281662A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281665A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281666A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281668A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281669A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281672A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281673A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281674A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281675A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281676A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281677A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281678A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281679A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281680A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281681A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281682A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281683A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281684A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281685A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281686A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281687A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281688A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281689A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281690A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281691A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281692A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281693A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281694A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281695A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281696A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281697A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281698A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281699A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281700A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281701A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281702A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281703A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281704A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281705A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281706A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281707A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281708A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281709A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281710A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281711A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281712A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281713A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281714A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281715A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281716A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281717A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281718A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281719A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281720A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281721A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281722A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281723A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281724A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281725A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281726A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281727A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281728A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281729A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281730A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281731A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281732A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281733A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281734A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281735A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281736A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281737A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281738A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281739A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281740A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281741A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281742A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281743A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281744A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281745A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281746A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281747A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281748A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281749A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281750A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281751A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281752A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281753A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281754A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281755A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281756A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281757A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281758A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281759A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281760A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281761A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281762A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281763A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281764A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281765A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281766A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281767A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281768A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281769A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281770A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281771A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281773A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281774A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281775A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281776A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281777A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281778A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281779A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281780A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281781A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281782A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281783A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281784A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281786A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281787A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281788A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281789A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281790A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281791A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281792A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281793A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281794A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281795A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281796A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281797A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281798A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281799A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281800A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281801A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281802A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281803A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281804A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281805A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281806A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281807A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281808A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281809A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281810A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281811A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281812A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281813A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281814A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281815A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281816A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281817A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281818A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281819A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281820A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281821A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281822A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281823A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281824A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281825A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281826A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281827A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281828A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281829A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281830A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281831A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281832A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281833A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281834A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281835A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281836A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281837A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281838A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281839A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281840A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281841A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281842A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281843A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281844A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281845A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281846A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281847A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281848A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281849A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281850A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281851A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281852A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281853A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281854A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281855A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281856A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281857A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281858A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281859A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281860A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281861A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281862A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281863A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281864A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281865A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281866A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281867A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281868A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281869A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281870A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281871A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281872A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281873A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281874A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281875A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281876A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281877A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281878A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281879A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281880A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281881A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281882A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281883A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281884A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281885A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281886A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281887A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281888A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281889A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281890A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281891A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281892A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281893A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281894A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281895A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281896A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281897A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281900A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281901A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281902A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281903A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281904A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281905A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281906A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281907A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281908A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281909A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281910A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281911A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281912A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281913A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281914A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281915A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281916A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281917A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281918A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281919A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281920A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281921A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281922A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281923A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281924A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281925A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281926A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281927A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281928A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281929A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281930A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281931A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281932A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281933A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281934A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281935A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281936A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281937A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281938A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281939A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281940A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281941A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281942A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281943A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281944A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281945A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281946A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281947A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281948A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281949A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281950A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281951A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281952A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281953A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281954A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281955A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281956A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281957A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281958A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281959A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281960A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281961A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281962A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281963A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281964A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281965A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281966A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281967A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281968A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281969A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281970A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281971A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281972A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281973A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281974A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281975A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281976A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281977A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281978A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281979A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281980A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281981A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281982A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281983A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281984A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281985A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281986A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281987A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281988A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281989A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281990A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281991A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281992A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281993A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281994A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281995A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281996A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281997A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281998A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4281999A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282000A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282001A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282002A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282003A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282004A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282005A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282006A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282007A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282008A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282009A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282010A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282011A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282012A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282013A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282014A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282015A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282016A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282017A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282018A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282019A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282020A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282021A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282022A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282023A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282024A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282025A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282026A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282027A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282028A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282029A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282030A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282031A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282032A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282033A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282034A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282035A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282036A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282037A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282038A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282039A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282040A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282041A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282042A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282043A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282044A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282045A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282046A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282047A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282048A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282049A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282050A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282051A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282052A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282053A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282054A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282055A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282056A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282057A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282058A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282059A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282060A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282061A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282062A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282063A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282064A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282065A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282066A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282067A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282068A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282069A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282070A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282071A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282072A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282073A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282074A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282075A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282076A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282077A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282078A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282079A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282080A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282081A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282082A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282083A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282084A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282085A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282086A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282087A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282088A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282089A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282090A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282091A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282092A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282093A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282094A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282095A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282096A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282097A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282098A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282099A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282100A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282101A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282102A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282103A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282104A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282105A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282106A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282107A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282108A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282109A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282110A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282111A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282112A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282113A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282114A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282115A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282116A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282117A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282118A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282119A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282120A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282121A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282122A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282123A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282124A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282125A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282126A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282127A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282128A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282129A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282130A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282131A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282132A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282133A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282134A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282135A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282136A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282137A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282138A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282139A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282140A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282141A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282142A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282143A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282144A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282145A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282146A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282147A</loc><lastmod>1981-08-04</lastmod></url><url><loc>https://patentgrep.com/patent/US4282148A</loc><lastmod>1981-08-04</lastmod></url></urlset>