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l><loc>https://patentgrep.com/patent/US4307640A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307641A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307642A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307643A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307644A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307645A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307646A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307647A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307648A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307649A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307650A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307651A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307652A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307653A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307654A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307655A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307656A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307657A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307658A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307659A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307660A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307661A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307662A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307663A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307664A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307665A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307666A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307667A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307668A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307669A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307670A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307671A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307672A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307673A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307675A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307676A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307677A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307678A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307679A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307680A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307681A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307682A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307683A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307684A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307685A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307686A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307687A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307688A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307689A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307690A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307691A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307692A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307693A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307694A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307695A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307696A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307697A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307698A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307699A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307700A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307701A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307702A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307703A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307704A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307705A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307706A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307707A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307708A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307709A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307710A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307711A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307712A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307713A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307714A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307715A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307716A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307718A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307719A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307721A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307724A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307725A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307726A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307727A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307728A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307729A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307730A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307731A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307732A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307733A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307734A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307735A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307736A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307737A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307738A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307739A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307740A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307741A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307742A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307743A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307744A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307745A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307746A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307747A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307748A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307750A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307751A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307752A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307753A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307754A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307755A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307756A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307757A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307758A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307759A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307760A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307761A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307762A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307763A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307764A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307765A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307766A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307767A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307768A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307769A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307770A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307771A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307772A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307773A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307774A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307776A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307777A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307778A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307779A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307780A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307781A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307782A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307783A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307784A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307785A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307786A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307787A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307788A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307789A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307790A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307791A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307792A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307793A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307794A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307795A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307796A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307797A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307798A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307799A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307801A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307802A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307803A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307804A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307805A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307806A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307807A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307808A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307809A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307810A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307811A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307812A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307813A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307814A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307815A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307816A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307817A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307818A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307819A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307820A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307821A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307822A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307823A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307824A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307825A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307826A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307827A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307828A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307829A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307830A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307831A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307832A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307833A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307834A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307835A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307836A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307837A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307838A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307839A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307840A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307841A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307842A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307843A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307844A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307845A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307846A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307847A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307848A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307849A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307850A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307851A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307852A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307853A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307854A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307855A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307856A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307857A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307858A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307859A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307860A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307861A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307862A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307863A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307864A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307865A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307866A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307867A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307868A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307869A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307870A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307871A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307872A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307873A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307874A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307875A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307876A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307877A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307878A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307879A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307880A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307881A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307882A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307883A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307884A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307885A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307886A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307887A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307888A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307889A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307890A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307891A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307892A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307893A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307894A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307895A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307896A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307897A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307898A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307899A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307900A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307901A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307902A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307903A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307904A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307905A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307906A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307907A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307908A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307909A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307910A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307911A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307912A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307913A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307914A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307915A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307916A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307917A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307918A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307919A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307920A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307921A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307922A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307923A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307924A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307925A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307927A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307928A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307929A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307930A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307931A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307932A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307933A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307934A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307935A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307936A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307937A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307939A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307940A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307941A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307942A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307943A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307944A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307945A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307946A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307947A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307948A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307949A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307950A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307951A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307952A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307953A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307954A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307955A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307956A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307957A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307958A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307959A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307960A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307961A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307962A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307963A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307964A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307965A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307966A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307967A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307968A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307969A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307970A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307971A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307972A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307973A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307974A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307975A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307976A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307977A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307978A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307979A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307980A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307981A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307982A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307983A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307984A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307985A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307986A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307987A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307988A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307989A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307990A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307991A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307992A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307993A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307994A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307995A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307996A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307997A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307998A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4307999A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308000A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308001A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308002A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308003A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308004A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308005A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308006A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308008A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308009A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308010A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308011A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308012A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308013A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308014A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308015A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308016A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308017A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308018A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308019A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308020A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308021A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308022A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308023A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308024A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308025A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308026A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308027A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308028A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308029A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308030A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308031A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308032A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308034A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308035A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308036A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308037A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308038A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308039A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308040A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308041A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308042A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308043A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308044A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308045A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308046A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308047A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308048A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308049A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308050A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308051A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308052A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308053A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308054A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308055A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308056A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308057A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308058A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308059A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308060A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308061A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308062A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308063A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308064A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308065A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308066A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308067A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308068A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308069A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308070A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308071A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308072A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308073A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308074A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308075A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308076A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308077A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308078A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308079A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308080A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308081A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308082A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308083A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308084A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308085A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308086A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308087A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308088A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308089A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308090A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308091A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308092A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308093A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308094A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308095A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308096A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308097A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308098A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308099A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308100A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308101A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308102A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308103A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308104A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308105A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308106A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308107A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308108A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308109A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308110A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308111A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308112A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308113A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308114A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308115A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308116A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308117A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308118A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308119A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308120A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308121A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308122A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308123A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308124A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308125A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308126A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308127A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308128A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308129A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308130A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308131A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308132A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308133A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308134A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308135A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308136A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308137A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308138A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308139A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308140A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308141A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308142A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308143A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308144A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308145A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308146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/US4308256A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308257A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308258A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308259A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308260A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308261A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308262A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308263A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308264A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308265A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308266A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308267A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308270A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308271A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308272A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308273A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308274A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308275A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308276A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308277A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308278A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308279A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308280A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308281A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308282A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308283A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308284A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308285A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308286A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308287A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308288A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308289A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308290A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308291A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308292A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308293A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308294A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308295A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308296A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308297A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308298A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308299A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308300A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308301A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308302A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308303A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308304A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308305A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308306A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308307A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308308A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308309A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308310A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308311A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308312A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308313A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308314A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308315A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308316A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308317A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308318A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308319A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308320A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308321A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308322A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308323A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308324A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308325A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308326A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308327A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308328A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308329A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308330A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308331A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308332A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308333A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308334A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308335A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308336A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308337A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308338A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308339A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308340A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308341A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308342A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308343A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308344A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308345A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308346A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308347A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308348A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308349A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308350A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308351A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308352A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308353A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308354A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308355A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308356A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308357A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308358A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308359A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308360A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308361A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308362A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308363A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308364A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308365A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308366A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308367A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308368A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308369A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308370A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308371A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308372A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308373A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308374A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308375A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308376A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308377A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308378A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308379A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308380A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308381A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308382A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308383A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308384A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308385A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308386A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308387A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308388A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308389A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308390A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308391A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308392A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308393A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308394A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308395A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308396A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308397A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308398A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308399A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308401A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308402A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308403A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308404A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308405A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308406A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308407A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308408A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308409A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308410A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308411A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308412A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308413A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308414A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308415A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308416A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308417A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308418A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308419A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308420A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308421A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308422A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308423A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308424A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308425A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308426A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308427A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308428A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308429A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308430A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308431A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308432A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308433A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308434A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308435A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308436A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308437A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308438A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308439A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308440A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308441A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308442A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308443A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308444A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308445A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308446A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308447A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308448A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308449A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308450A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308451A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308452A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308453A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308454A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308455A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308456A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308457A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308458A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308459A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308460A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308461A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308462A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308463A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308464A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308465A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308466A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308467A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308468A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308469A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308470A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308471A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308472A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308473A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308474A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308475A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308476A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308477A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4308478A</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://p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><url><loc>https://patentgrep.com/patent/USD262490S</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USD262491S</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USD262492S</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USD262493S</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USD262494S</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30833E</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30834E</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30836E</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30837E</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30838E</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30839E</loc><lastmod>1981-12-29</lastmod></url><url><loc>https://patentgrep.com/patent/US4306315A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306316A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306317A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306319A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306320A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306321A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306323A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306324A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306325A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306326A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306327A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306328A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306330A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306331A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306332A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306333A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306334A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306335A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306336A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306337A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306338A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306339A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306340A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306341A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306342A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306343A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306344A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306345A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306346A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306347A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306348A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306349A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306350A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306351A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306352A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306353A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306354A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306355A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306356A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306357A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306358A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306359A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306360A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306361A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306362A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306363A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306364A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306365A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306366A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306367A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306368A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306369A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306370A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306371A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306372A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306373A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306374A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306375A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306376A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306377A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306378A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306379A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306380A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306381A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306382A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306383A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306384A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306385A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306386A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306387A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306388A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306389A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306390A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306391A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306392A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306393A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306394A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306395A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306396A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306397A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306398A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306399A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306400A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306401A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306402A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306403A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306404A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306405A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306406A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306407A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306408A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306409A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306410A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306411A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306412A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306413A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306414A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306415A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306416A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306417A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306418A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306419A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306420A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306421A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306422A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306423A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306424A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306425A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306426A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306427A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306428A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306429A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306430A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306431A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306432A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306433A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306434A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306435A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306436A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306437A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306438A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306439A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306440A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306441A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306442A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306443A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306444A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306445A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306446A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306447A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306448A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306449A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306450A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306451A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306452A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306453A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306455A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306456A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306457A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306458A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306459A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306460A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306461A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306462A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306463A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306464A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306465A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306466A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306467A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306468A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306469A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306470A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306471A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306472A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306473A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306474A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306475A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306476A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306477A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306478A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306479A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306480A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306481A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306482A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306483A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306484A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306485A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306486A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306487A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306488A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306489A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306490A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306491A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306492A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306493A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306494A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306495A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306496A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306497A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306498A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306499A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306500A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306501A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306502A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306503A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306504A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306505A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306506A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306507A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306508A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306509A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306510A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306511A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306512A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306513A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306514A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306515A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306516A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306517A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306518A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306519A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306520A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306521A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306522A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306523A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306524A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306525A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306526A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306527A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306528A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306529A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306530A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306531A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306532A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306533A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306534A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306535A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306536A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306537A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306538A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306539A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306540A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306541A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306542A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306543A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306544A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306545A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306546A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306547A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306548A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306549A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306551A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306552A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306553A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306554A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306555A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306556A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306558A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306559A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306560A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306563A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306564A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306565A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306566A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306568A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306569A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306571A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306572A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306573A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306574A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306575A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306576A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306577A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306578A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306579A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306580A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306581A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306582A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306583A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306584A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306585A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306586A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306587A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306588A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306589A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306590A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306591A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306592A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306593A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306594A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306595A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306596A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306597A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306598A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306599A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306600A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306601A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306602A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306603A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306604A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306605A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306606A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306607A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306608A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306609A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306610A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306611A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306612A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306613A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306614A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306615A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306616A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306617A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306618A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306619A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306620A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306622A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306623A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306624A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306625A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306626A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306627A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306628A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306629A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306630A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306631A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306632A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306633A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306634A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306635A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306636A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306637A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306638A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306639A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306640A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306641A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306642A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306643A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306644A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306645A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306646A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306647A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306648A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306649A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306650A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306651A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306652A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306653A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306654A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306655A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306656A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306657A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306658A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306659A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306660A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306661A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306662A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306663A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306664A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306665A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306666A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306667A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306668A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306669A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306670A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306671A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306672A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306673A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306674A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306675A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306676A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306677A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306678A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306679A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306680A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306681A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306682A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306683A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306684A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306685A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306686A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306687A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306688A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306689A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306690A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306691A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306692A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306693A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306694A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306695A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306696A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306698A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306699A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306700A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306701A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306702A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306703A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306704A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306706A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306707A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306708A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306709A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306710A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306711A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306712A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306713A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306714A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306715A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306716A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306717A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306718A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306719A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306720A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306721A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306722A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306723A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306724A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306725A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306726A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306727A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306728A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306729A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306730A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306731A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306732A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306733A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306734A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306735A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306736A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306737A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306738A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306739A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306740A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306741A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306742A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306743A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306744A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306745A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306746A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306747A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306748A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306749A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306750A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306751A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306752A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306753A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306754A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306755A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306756A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306757A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306758A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306759A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306760A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306761A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306762A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306763A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306764A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306765A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306766A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306767A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306769A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306770A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306771A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306772A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306773A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306774A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306775A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306776A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306777A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306778A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306779A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306780A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306781A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306782A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306783A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306784A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306785A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306786A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306787A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306788A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306789A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306790A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306791A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306792A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306793A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306794A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306795A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306796A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306797A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306798A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306799A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306800A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306801A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306802A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306803A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306804A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306805A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306806A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306807A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306808A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306809A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306810A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306811A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306812A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306813A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306814A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306815A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306816A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306817A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306818A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306819A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306820A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306821A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306822A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306823A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306824A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306825A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306826A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306827A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306828A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306829A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306830A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306831A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306832A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306833A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306834A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306835A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306836A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306837A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306838A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306839A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306840A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306841A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306842A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306843A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306844A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306845A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306846A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306847A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306848A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306849A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306850A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306851A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306852A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306853A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306854A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306855A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306856A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306857A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306858A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306859A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306860A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306861A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306863A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306864A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306865A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306867A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306868A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306869A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306870A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306871A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306872A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306873A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306874A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306875A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306876A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306877A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306878A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306879A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306880A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306881A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306882A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306883A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306884A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306885A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306886A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306887A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306888A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306889A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306890A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306891A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306892A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306893A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306894A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306895A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306896A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306897A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306898A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306899A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306900A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306901A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306902A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306903A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306904A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306905A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306906A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306907A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306908A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306909A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306910A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306911A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306912A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306913A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306914A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306915A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306916A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306917A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306918A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306919A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306920A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306921A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306922A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306923A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306924A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306925A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306926A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306927A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306928A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306929A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306930A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306931A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306932A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306933A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306934A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306935A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306936A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306937A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306938A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306939A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306940A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306941A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306943A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306944A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306945A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306946A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306947A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306948A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306949A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306950A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306951A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306952A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306953A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306954A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306955A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306956A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306957A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306958A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306959A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306960A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306961A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306962A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306963A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306964A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306965A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306966A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306967A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306968A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306969A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306970A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306971A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306972A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306973A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306974A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306975A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306976A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306977A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306978A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4306979A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.c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rep.com/patent/US4307037A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307038A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307039A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307040A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307041A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307042A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307043A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307044A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307045A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307046A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307047A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307048A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307049A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307050A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307051A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307052A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307053A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307054A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307055A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307056A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307057A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307058A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307059A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307060A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307061A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307062A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307063A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307064A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307065A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307066A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307067A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307068A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307069A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307070A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307071A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307072A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307073A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307074A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307075A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307076A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307077A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307078A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307079A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307080A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307081A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307082A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307083A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307084A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307085A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307086A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307087A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307088A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307089A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307090A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307091A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307092A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307093A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307094A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307095A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307096A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307097A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307098A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307099A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307100A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307101A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307102A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307103A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307104A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307105A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307106A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307107A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307108A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307109A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307110A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307111A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307112A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307113A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307114A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307115A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307116A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307117A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307118A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307119A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307120A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307121A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307122A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307123A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307124A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307125A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307126A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307127A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307128A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307129A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307130A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307131A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307132A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307133A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307134A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307135A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307136A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307137A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307138A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307139A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307140A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307141A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307142A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307144A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307145A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307146A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307147A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https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https://patentgrep.com/patent/US4307203A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307204A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307205A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307206A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307207A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307208A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307209A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307210A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307211A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307212A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307213A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307214A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307215A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307216A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307217A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307218A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307219A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307220A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307221A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307222A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307223A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307224A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307225A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307226A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307227A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307228A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307229A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307230A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307231A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307232A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307233A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307234A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307235A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307236A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307237A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307238A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307239A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307240A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307241A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307242A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307243A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307244A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307245A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307246A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307247A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307248A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307249A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307250A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307251A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307252A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307253A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307255A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307256A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307257A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307258A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307259A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307260A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307261A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307262A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307263A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307264A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307265A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307266A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307267A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307268A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307269A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307270A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307271A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307272A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307273A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307274A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307275A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307276A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307277A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307278A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307279A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307280A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307281A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307282A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307283A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307284A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307285A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307286A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307287A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307288A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307289A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307290A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307291A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307292A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307293A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307294A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307295A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307296A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307297A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307298A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307299A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307300A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307301A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307302A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307303A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307304A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307305A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307306A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307307A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307308A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307309A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307310A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307311A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307312A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307313A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307314A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307315A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307316A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307317A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307318A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307319A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307320A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307321A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307322A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307323A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307324A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307325A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307326A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307327A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307328A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307329A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307330A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307331A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307332A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307333A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307334A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307335A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307336A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307337A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307338A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307339A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307340A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307341A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307342A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307343A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307344A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307345A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307346A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307347A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307348A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307349A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307350A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307351A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307352A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307353A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307354A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307355A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307356A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307357A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307358A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307359A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307360A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307361A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307362A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307363A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307364A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307365A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307366A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307367A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307368A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307369A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307370A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307371A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307372A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307373A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307374A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307375A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307376A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307377A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307378A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307379A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307380A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307381A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307382A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307383A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307384A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307385A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307386A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307387A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307388A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307389A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307390A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307391A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307392A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307393A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307394A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307395A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307396A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307397A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307398A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307399A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307400A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307401A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307402A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307403A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307404A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307405A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307406A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307407A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307408A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307409A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307410A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307411A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307412A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307413A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307414A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307415A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307416A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307417A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307418A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307419A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307420A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307421A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307422A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307423A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307424A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307425A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307426A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307427A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307428A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307429A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307430A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307431A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307432A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307433A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307434A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307435A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307436A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307437A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307438A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307439A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307440A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307441A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307442A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307443A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307444A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307445A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307448A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307449A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307450A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307451A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307452A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307453A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307454A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307455A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307456A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307457A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307458A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307459A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307460A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307461A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307462A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307463A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307464A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307465A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307466A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307467A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307468A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4307469A</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262325S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262326S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262327S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262328S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262329S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262330S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262331S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262332S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262333S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262334S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262335S</loc><lastmod>1981-12-22<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2-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262391S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262392S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262393S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262394S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262395S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262396S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262397S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262398S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262399S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262400S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262401S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262402S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262403S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262404S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262405S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262406S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262407S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262408S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USD262409S</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30827E</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30828E</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30829E</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30830E</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30831E</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30832E</loc><lastmod>1981-12-22</lastmod></url><url><loc>https://patentgrep.com/patent/US4305160A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305161A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305162A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305163A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305164A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305165A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305166A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305167A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305168A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305169A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305170A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305171A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305172A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305173A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305174A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305175A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305176A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305177A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305178A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305179A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305180A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305181A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305182A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305183A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305184A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305185A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305186A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305187A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305188A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305189A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305190A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305191A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305192A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305193A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305194A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305195A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305196A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305197A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305198A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305199A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305200A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305201A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305202A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305203A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305204A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305205A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305206A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305207A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305208A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305209A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305210A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305211A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305213A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305215A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305217A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305218A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305219A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305220A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305221A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305222A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305223A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305224A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305225A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305226A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305227A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305228A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305229A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305230A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305231A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305232A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305233A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305234A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305235A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305236A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305237A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305238A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305239A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305240A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305241A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305242A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305243A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305244A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305245A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305246A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305247A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305248A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305249A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305250A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305251A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305252A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305255A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305256A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305257A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305258A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305259A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305260A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305261A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305262A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305263A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305264A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305265A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305266A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305267A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305268A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305269A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305270A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305271A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305272A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305273A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305274A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305275A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305276A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305277A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305278A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305279A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305280A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305281A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305282A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305283A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305284A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305285A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305286A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305287A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305288A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305289A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305290A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305291A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305292A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305293A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305294A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305295A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305296A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305297A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305298A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305299A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305300A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305301A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305302A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305303A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305304A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305305A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305306A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305307A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305308A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305309A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305310A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305311A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305312A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305313A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305314A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305315A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305316A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305317A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305318A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305319A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305320A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305321A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305322A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305323A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305324A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305325A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305326A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305327A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305328A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305329A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305330A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305331A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305332A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305333A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305334A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305335A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305336A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305337A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305338A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305339A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305340A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305341A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305342A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305343A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305344A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305345A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305346A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305347A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305348A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305349A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305350A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305351A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305352A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305353A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305354A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305355A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305356A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305357A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305358A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305359A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305360A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305361A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305362A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305363A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305364A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305365A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305366A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305367A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305368A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305369A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305370A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305371A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305372A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305373A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305374A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305375A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305376A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305377A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305378A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305379A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305380A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305381A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305382A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305383A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305384A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305385A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305386A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305387A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305388A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305389A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305390A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305391A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305392A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305393A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305395A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305396A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305397A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305398A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305399A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305400A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305403A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305404A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305405A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305406A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305407A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305408A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305409A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305410A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305411A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305412A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305413A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305414A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305415A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305416A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305417A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305418A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305419A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305420A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305421A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305422A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305423A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305424A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305425A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305426A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305427A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305428A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305429A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305430A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305431A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305432A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305433A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305434A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305435A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305436A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305437A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305438A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305439A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305440A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305441A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305442A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305443A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305444A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305445A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305446A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305447A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305448A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305449A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305450A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305451A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305452A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305453A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305454A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305455A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305456A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305457A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305458A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305459A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305460A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305461A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305462A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305464A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305465A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305466A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305467A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305468A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305469A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305470A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305471A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305472A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/U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ent/US4305529A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305530A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305531A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305532A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305533A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305534A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305535A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305536A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305537A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305538A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305540A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305541A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305542A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305543A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305544A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305545A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305546A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305547A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305548A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305549A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305550A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305551A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305552A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305553A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305554A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305555A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305556A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305557A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305558A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305559A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305560A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305561A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305562A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305563A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305564A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305565A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305567A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305568A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305569A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305570A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305571A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305572A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305573A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305574A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305575A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305576A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305577A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305578A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305579A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305580A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305581A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305582A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305583A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305584A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305585A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.co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ep.com/patent/US4305641A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305642A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305643A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305644A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305645A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305646A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305647A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305648A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305649A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305650A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305651A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305652A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305653A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305654A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305655A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305656A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305657A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305658A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305659A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305660A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305661A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305662A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305663A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305664A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305665A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305666A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305667A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305668A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305669A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305670A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305671A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305672A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305673A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305674A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305675A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305676A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305677A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305678A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305679A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305680A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305681A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305682A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305683A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305684A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305685A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305686A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305687A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305688A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305689A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305690A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305691A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305692A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305693A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305694A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305695A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://pat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url><loc>https://patentgrep.com/patent/US4305917A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305918A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305919A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305920A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305921A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305922A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305923A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305924A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305925A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305926A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305927A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305928A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305929A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305930A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305931A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305932A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305933A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305934A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305935A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305937A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305938A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305939A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305940A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305941A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305942A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305943A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305944A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305945A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305946A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305947A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305948A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305949A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305950A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305951A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305952A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305953A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305954A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305955A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305956A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305957A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305958A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305959A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305960A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305961A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305962A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305963A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305964A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305965A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305966A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305967A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305968A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305969A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305970A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305971A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305972A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305973A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305974A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305975A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305976A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305977A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305978A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305979A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305980A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305981A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305982A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305983A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305984A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305985A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305986A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305987A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305988A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305989A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305990A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305991A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305993A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305994A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305995A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305996A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305997A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305998A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4305999A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306000A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306001A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306002A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306003A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306004A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306005A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306006A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306007A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306009A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306010A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306011A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306012A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306013A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306014A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306015A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306016A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306017A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306018A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306019A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306020A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306021A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306022A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306023A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306024A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306025A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306026A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306027A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306028A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306029A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306030A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306031A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306032A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306033A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306034A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306035A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306036A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306037A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306038A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306039A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306040A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306041A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306042A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306043A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306044A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306045A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306046A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306047A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306048A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306049A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306050A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306051A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306052A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306053A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306054A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306055A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306056A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306057A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306058A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306059A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306060A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306061A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306062A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306063A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306064A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306065A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306067A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306068A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306069A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306070A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306071A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306072A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306073A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306074A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306076A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306077A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306078A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306079A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306080A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306081A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306082A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306083A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306084A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306085A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306086A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306087A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306088A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306089A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306090A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306091A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306092A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306093A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306094A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306095A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306096A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306097A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306098A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306099A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306100A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306101A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306102A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306103A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306104A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306105A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306106A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306107A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306108A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306109A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306110A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306111A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306112A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306115A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306116A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306117A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306118A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306119A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306120A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306121A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306122A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306123A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306124A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306125A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306126A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306127A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306128A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306129A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306130A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306131A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306132A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306133A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306134A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306135A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306136A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306137A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306138A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306139A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306140A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306141A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306142A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306143A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306144A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306145A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306146A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306147A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306148A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306149A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306150A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306151A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306152A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306153A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306154A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306155A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306156A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306157A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306158A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306159A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306160A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306161A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306162A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306163A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306164A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306165A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306166A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306167A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306168A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306169A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306170A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306171A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306172A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306173A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306174A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306175A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306176A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306177A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306178A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306179A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306180A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306181A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306182A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306183A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306184A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306185A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306186A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306187A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306188A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306189A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306190A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306191A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306192A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306193A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306194A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306195A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306196A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306197A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306198A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306199A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306200A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306201A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306202A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306203A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306204A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306205A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306206A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306207A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306208A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306209A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306210A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306211A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306212A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306213A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306214A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306215A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306216A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306217A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306218A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306220A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306221A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306222A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306223A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306224A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306225A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306226A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306227A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306228A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306229A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306230A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306231A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306232A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306233A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306234A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306235A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306236A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306237A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306238A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306239A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306240A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306241A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306242A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306243A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306244A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306246A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306247A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306248A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306249A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306251A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306252A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306253A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306254A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306255A</loc><lastmod>1981-12-15</lastmod></url><url><loc>https://patentgrep.com/patent/US4306256A</loc><lastm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4304082A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304084A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304085A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304086A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304087A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304088A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304089A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304090A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304091A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304092A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304093A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304094A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304095A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304096A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304097A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304098A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304099A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304100A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304101A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304102A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304103A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304104A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304105A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304106A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304107A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304108A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304109A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304110A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304111A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304112A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304113A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304114A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304115A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304116A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304117A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304118A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304119A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304120A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304121A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304122A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304123A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304124A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304125A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304126A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304127A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304128A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304129A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304130A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304131A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304132A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304133A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304134A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304135A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304136A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304137A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304138A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304139A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304140A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304141A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304142A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304143A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304144A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304145A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304146A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304147A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304148A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304149A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304150A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304151A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304152A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304153A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304154A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304155A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304156A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304157A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304158A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304159A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304160A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304161A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304162A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304163A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304164A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304165A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304166A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304167A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304168A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304169A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304170A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304171A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304172A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304173A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304174A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304175A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304176A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304177A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304178A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304179A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304180A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304181A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304182A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304183A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304184A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304185A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304186A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304187A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304188A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304189A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304190A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304191A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304192A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com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tps://patentgrep.com/patent/US4304420A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304421A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304422A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304423A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304424A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304425A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304426A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304427A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304429A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304430A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304431A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304432A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304433A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304434A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304435A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304436A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304437A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304438A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304439A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304440A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304441A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304442A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304443A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304444A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304445A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304446A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304447A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304448A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304449A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304450A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304451A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304452A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304453A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304454A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304455A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304456A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304457A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304458A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304459A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304460A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304461A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304462A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304463A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304464A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304465A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304466A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304467A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304468A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304469A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304470A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304471A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304472A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304473A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304474A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304475A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304476A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304477A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304478A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304479A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304480A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304481A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304482A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304483A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304484A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304485A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304486A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304487A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304488A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304489A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304490A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304491A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304492A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304493A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304494A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304495A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304496A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304497A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304498A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304499A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304500A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304501A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304502A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304503A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304504A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304505A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304506A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304507A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304508A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304509A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304510A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304511A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304512A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304513A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304514A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304515A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304516A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304517A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304518A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304519A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304520A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304521A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304522A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304523A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304525A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304526A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304527A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304528A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304529A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304530A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304531A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304532A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304533A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304534A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304535A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304536A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304537A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304538A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304539A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304540A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304541A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304542A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304543A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304544A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304545A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304546A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304547A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304548A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304549A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304550A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304551A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304552A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304553A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304554A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304555A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304556A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304557A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304558A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304559A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304560A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304561A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304562A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304563A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304564A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304565A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304566A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304567A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304568A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304569A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304570A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304571A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304572A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304573A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304574A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304575A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304577A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304578A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304579A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304580A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304581A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304582A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304583A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304584A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304585A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304586A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304587A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304588A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304589A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304590A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304591A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304592A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304593A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304594A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304595A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304596A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304597A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304598A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304599A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304600A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304601A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304602A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304603A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304604A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304605A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304606A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304607A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304608A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304609A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304610A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304611A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304612A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304613A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304614A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304615A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304616A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304617A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304618A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304619A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304620A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304621A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304622A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304623A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304624A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304625A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304626A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304627A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304628A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304629A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304630A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304631A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304632A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304633A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304634A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304635A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304636A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304637A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304638A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304639A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304640A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304642A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304643A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304644A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304645A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304646A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304647A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304648A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304649A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304650A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304651A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304652A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304653A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304654A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304655A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304656A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304657A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304658A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304659A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304660A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304661A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304662A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304663A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304664A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304665A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304666A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304667A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304668A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304669A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304670A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304671A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304672A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304673A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304674A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304675A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304676A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304677A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304678A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304679A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304680A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304681A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304682A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304683A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304684A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304685A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304686A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304687A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304688A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304689A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304690A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304691A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304692A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304693A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304694A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304695A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304697A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304698A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304699A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304700A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304701A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304702A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304703A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304704A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304706A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304707A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304708A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304709A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304710A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304711A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304712A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304713A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304714A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304715A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304716A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304717A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304718A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304719A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304720A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304721A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304722A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304723A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304724A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304725A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304726A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304727A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304728A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304729A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304730A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304731A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304732A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304733A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304734A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304735A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304736A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304737A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304738A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304739A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304740A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304741A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304742A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304743A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304744A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304745A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304746A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304747A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304748A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304749A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304750A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304751A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304752A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304753A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304754A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304755A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304756A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304757A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304758A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304759A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304760A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304761A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304762A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304763A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304764A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304766A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304768A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304769A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304770A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304771A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304772A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304773A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304774A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304775A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304776A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304777A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304778A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304779A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304780A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304781A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304782A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304783A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304784A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304785A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304786A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304787A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304788A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304789A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304790A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304791A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304792A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304793A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304794A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304795A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304796A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304797A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304798A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304799A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304800A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304801A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304802A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304803A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304804A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304805A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304806A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304807A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304808A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304809A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304810A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304811A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304812A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304813A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304814A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304815A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304816A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304817A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304818A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304819A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304820A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304822A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304823A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304824A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304825A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304826A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304827A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304828A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304829A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304830A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304831A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304832A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304833A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304834A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304835A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304836A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304837A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304838A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304839A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304840A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304841A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304842A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304843A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304844A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304845A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304846A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304847A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304848A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304849A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304850A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304851A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304852A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304853A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304854A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304855A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304856A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304857A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304858A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304859A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304860A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304861A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304862A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304863A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304864A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304865A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304866A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304867A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304868A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304869A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304870A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304871A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304872A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304873A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304874A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304875A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304876A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304877A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304878A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304879A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304880A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304881A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304882A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304883A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304884A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304885A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304886A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304887A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304888A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304889A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304890A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304891A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304892A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304893A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304894A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304896A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304897A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304898A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304899A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304900A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304902A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304903A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304904A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304905A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304906A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304907A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304908A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304909A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304910A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304911A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304912A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304913A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304914A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304915A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304916A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304917A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304918A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304919A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304920A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304921A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304922A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304923A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304924A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304925A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304926A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304927A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304928A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304929A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304930A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304931A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304932A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304933A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304934A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304935A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304936A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304937A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304938A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304939A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304940A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304941A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304942A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304943A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304944A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304945A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304946A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304947A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304948A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304949A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304950A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304951A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304952A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304953A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304954A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304955A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304956A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304957A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304958A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304959A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304960A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304961A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304962A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304963A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304964A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304965A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304966A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304967A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304968A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304969A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304971A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304972A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304973A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304974A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304975A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304976A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304977A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304978A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304979A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304980A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304981A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304982A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304983A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304984A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304985A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304986A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304988A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304989A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304991A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304992A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304993A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304994A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304995A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304996A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304997A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304998A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4304999A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305000A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305001A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305002A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305003A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305004A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305005A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305006A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305007A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305008A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305009A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305010A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305011A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305012A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305013A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305014A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305015A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305016A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305017A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305018A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305019A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305020A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305021A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305022A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305023A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305024A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305025A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305026A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305027A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305028A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305029A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305030A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305031A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305032A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305033A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305034A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305035A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305036A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305037A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305038A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305039A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305040A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305041A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305042A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305043A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305044A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305045A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305046A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305047A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305048A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305049A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305050A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305051A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305053A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305054A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305055A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305056A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305057A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305058A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305060A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305061A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305062A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305063A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305064A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305065A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305066A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305067A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305068A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305069A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305070A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305071A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305072A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305073A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305074A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305075A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305076A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305077A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305078A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305079A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305080A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305081A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305082A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305083A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305084A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305085A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305086A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305087A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305088A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305089A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305090A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305091A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305092A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305093A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4305094A</loc><lastmod>1981-12-08</lastmod></url><url><loc>https://patentgrep.com/patent/US4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tgrep.com/patent/US4302915A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302916A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302917A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302918A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302919A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302920A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302921A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302922A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302923A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302924A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302925A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302926A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302927A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302928A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302929A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302930A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302931A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302932A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302933A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302934A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302935A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302936A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302937A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302938A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302939A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302940A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302941A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302942A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302943A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302944A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302945A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302946A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302947A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302948A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302949A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302950A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302951A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302952A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302953A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302954A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302955A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302956A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302957A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302958A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302959A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302960A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302961A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302962A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302963A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302964A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302965A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302966A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302967A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302968A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4302969A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://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c>https://patentgrep.com/patent/US4303086A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303087A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303088A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303089A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303090A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303091A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303092A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303093A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303094A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303095A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303096A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303097A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303098A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303099A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303100A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303101A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303102A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303103A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303104A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303105A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303106A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303107A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303108A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303109A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303110A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303111A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303112A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303113A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303114A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303115A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303116A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303117A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303118A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303119A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303120A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303121A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303122A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303123A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303124A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303125A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303127A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303128A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303129A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303130A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303131A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303132A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303133A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303134A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303135A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303136A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303137A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303138A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303139A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303140A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303141A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303142A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303143A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303144A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303145A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303146A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303147A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303148A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303149A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303150A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303151A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303152A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303153A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303154A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303155A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303156A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303157A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303159A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303160A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303161A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303163A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303164A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303165A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303166A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303167A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303168A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303169A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303170A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303171A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303172A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303174A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303175A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303176A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303177A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303178A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303179A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303180A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303181A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303182A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303183A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303184A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303185A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303186A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303187A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303188A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303189A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303190A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303191A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303192A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303194A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303195A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303196A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303197A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303198A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303199A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303200A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303202A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303203A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303204A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303205A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303206A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303207A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303208A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303209A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303210A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303211A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303212A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303213A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303214A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303215A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303216A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303217A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303218A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303219A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303220A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303221A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303222A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303223A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303224A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303225A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303226A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303227A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303228A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303229A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303230A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303231A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303232A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303233A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303234A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303235A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303236A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303237A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303238A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303239A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303240A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303241A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303242A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303243A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303244A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303245A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303246A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303247A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303248A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303249A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303250A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303251A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303252A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303253A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303254A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303255A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303256A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303257A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303258A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303259A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303260A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303261A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303262A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303263A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303264A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303265A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303266A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303267A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303268A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303269A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303270A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303271A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303272A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303273A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303274A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303275A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303276A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303277A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303278A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303279A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303280A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303281A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303282A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303283A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303284A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303285A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303286A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303287A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303288A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303289A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303290A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303291A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303292A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303293A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303294A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303295A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303297A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303298A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303299A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303301A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303303A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303304A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303305A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303306A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303307A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303308A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303309A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303310A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303311A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303312A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303313A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303314A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303315A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303316A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303317A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303318A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303319A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303320A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303321A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303322A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303323A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303324A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303325A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303326A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303327A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303328A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303329A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303330A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303331A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303332A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303333A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303334A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303335A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303336A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303337A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303338A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303339A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303340A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303341A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303342A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303343A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303344A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303345A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303346A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303347A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303348A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303349A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303350A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303351A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303352A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303353A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303354A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303355A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303356A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303357A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303358A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303359A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303360A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303361A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303362A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303363A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303364A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303365A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303366A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303367A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303368A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303369A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303370A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303371A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303372A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303373A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303374A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303375A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303377A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303378A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303379A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303380A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303381A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303382A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303383A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303384A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303385A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303386A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303387A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303388A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303389A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303390A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303391A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303392A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303393A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303394A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303395A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303396A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303397A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303398A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303399A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303400A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303401A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303402A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303403A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303404A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303405A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303406A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303407A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303408A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303409A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303410A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303411A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303412A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303413A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303414A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303415A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303416A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303417A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303418A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303419A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303420A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303421A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303422A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303423A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303424A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303425A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303426A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303427A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303428A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303429A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303430A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303432A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303434A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303435A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303436A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303437A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303438A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303439A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303440A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303441A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303443A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303444A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303445A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303446A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303447A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303448A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303449A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303450A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303451A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303452A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303453A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303454A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303455A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303456A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303457A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303458A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303459A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303460A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303461A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303462A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303463A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303464A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303465A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303466A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303467A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303468A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303469A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303470A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303471A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303472A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303473A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303474A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303475A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303476A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303477A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303478A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303479A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303480A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303481A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303482A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303483A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303484A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303486A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303487A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303488A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303489A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303490A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303491A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303492A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303493A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303494A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303495A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303496A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303497A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303498A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303499A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303500A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303501A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303502A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303503A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303504A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303505A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303506A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303507A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303508A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303509A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303510A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303511A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303512A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303513A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303514A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303515A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303516A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303517A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303518A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303519A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303520A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303521A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303522A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303523A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303524A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303525A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303526A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303527A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303528A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303529A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303530A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303531A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303532A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303533A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303534A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303535A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303536A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303537A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303538A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303539A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303540A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303541A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303542A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303543A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303544A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303545A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303546A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303547A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303548A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303549A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303550A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303551A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303552A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303553A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303554A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303555A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303556A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303557A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303558A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303559A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303560A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303561A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303562A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303563A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303564A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303565A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303566A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303567A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303568A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303569A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303570A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303571A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303572A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303573A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303574A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303575A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303576A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303577A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303578A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303579A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303580A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303581A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303582A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303583A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303584A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303585A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303586A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303587A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303588A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303589A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303590A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303591A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303592A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303593A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303594A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303595A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303596A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303597A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303598A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303599A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303600A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303601A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303602A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303603A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303604A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303605A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303606A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303607A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303608A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303609A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303610A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303611A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303612A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303613A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303614A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303616A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303617A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303618A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303619A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303620A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303621A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303622A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303623A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303624A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303625A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303626A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303627A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303628A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303629A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303630A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303631A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303632A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303633A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303634A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303635A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303636A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303637A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303638A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303639A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303640A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303641A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303642A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303643A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303644A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303645A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303646A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303647A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303648A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303649A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303650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03705A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303706A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303707A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303708A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303709A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303710A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303711A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303712A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303713A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303714A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303715A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303716A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303717A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303718A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303719A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303720A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303721A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303722A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303723A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303724A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303725A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303726A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303727A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303728A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303729A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303731A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303733A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303734A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303735A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303737A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303738A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303739A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303740A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303741A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303742A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303743A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303744A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303745A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303746A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303747A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303749A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303750A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303751A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303752A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303753A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303754A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303755A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303757A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303758A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303759A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303760A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303761A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303762A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303763A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303764A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303765A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303766A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303767A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303768A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303769A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303770A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303771A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303773A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303774A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303775A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303776A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303777A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303778A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303779A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303780A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303781A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303782A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303783A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303784A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303785A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303786A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303787A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303788A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303789A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303790A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303791A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303792A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303793A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303794A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303795A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303796A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303797A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303798A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303799A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303800A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303801A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303802A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303803A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303804A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303805A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303806A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303807A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303808A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303810A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303811A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303812A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303813A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303814A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303815A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303816A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303817A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303818A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303819A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303820A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303821A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303822A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303823A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303824A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303825A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303826A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303827A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303828A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303829A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303830A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303831A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303832A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303833A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303834A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303835A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303836A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303837A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303838A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303839A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303840A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303841A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303842A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303843A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303844A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303845A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303846A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303847A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303848A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303849A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303850A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303851A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303852A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303853A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303854A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303855A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303856A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303857A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303858A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303859A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303860A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303861A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303862A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303863A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303864A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303865A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303866A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303867A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303868A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303869A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303870A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303871A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303872A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303873A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303874A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303875A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303876A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303877A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303878A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303879A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303880A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303881A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303882A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303883A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303884A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303885A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303886A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303888A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303889A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303890A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303891A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303892A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303893A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303894A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303895A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303896A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303897A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303898A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303899A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303900A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303901A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303902A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303903A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303905A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303906A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303907A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303908A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303909A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303910A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303911A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303912A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303913A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303914A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303915A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303916A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303917A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303918A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303919A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303920A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303921A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303922A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303923A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303925A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303926A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303927A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303928A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303929A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303930A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303931A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303932A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303933A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303934A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303935A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303936A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303937A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303938A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303939A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303942A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303943A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303944A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303945A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303946A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303947A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303948A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303949A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303950A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303951A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303952A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303953A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303954A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303955A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303956A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303957A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303958A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303959A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303960A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303961A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303962A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303963A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303964A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303965A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303966A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303967A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303968A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303969A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303970A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303971A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303972A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303975A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303976A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303977A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303979A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303980A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303981A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303982A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303983A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303985A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303986A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303987A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303988A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303989A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303990A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303991A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303992A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303993A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303994A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://patentgrep.com/patent/US4303995A</loc><lastmod>1981-12-01</lastmod></url><url><loc>https://p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><url><loc>https://patentgrep.com/patent/US4301607A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301608A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301609A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301610A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301611A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301612A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301613A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301614A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301615A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301616A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301617A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301618A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301619A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301620A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301621A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301622A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301623A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301624A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301625A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301626A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301627A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301628A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301629A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301630A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301631A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301632A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301633A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301634A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301635A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301636A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301637A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301638A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301639A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301640A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301641A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301642A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301643A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301644A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301645A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301646A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301647A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301648A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301649A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301650A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301651A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301652A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301653A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301654A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301655A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301656A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301657A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301658A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301659A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301660A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301661A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301662A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301663A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301664A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301665A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301666A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301667A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301668A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301669A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301670A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301671A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301672A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301673A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301674A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301675A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301676A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301677A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301678A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301679A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301680A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301681A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301682A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301683A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301684A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301685A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301686A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301687A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301688A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301689A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301690A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301691A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301692A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301693A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301694A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301695A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301696A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301697A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301698A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301699A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301700A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301701A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301702A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301703A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301704A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301705A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301706A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301707A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301708A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301709A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301710A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301711A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301712A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301713A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301714A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301715A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301716A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301717A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301718A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301719A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301720A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301721A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301722A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301723A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301724A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301725A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301726A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301727A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301728A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301729A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301730A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301731A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301732A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301733A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301734A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301735A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301736A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301737A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301738A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301739A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301740A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301741A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301742A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301743A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301744A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301745A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301746A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301747A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301748A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301749A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301750A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301751A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301752A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301753A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301754A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301755A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301756A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301757A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301758A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301759A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301760A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301761A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301762A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301763A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301764A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301765A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301766A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301767A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301768A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301769A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301770A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301771A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301772A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301773A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301774A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301775A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301776A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301777A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301778A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301779A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301780A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301781A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301782A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301783A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301784A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301785A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301786A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301787A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301788A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301789A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301790A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301791A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301792A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301793A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301794A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301795A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301796A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301797A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301798A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301800A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301801A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301804A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301805A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301806A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301807A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301808A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301809A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301810A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301811A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301812A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301813A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301814A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301816A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301817A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301818A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301819A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301820A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301821A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301822A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301823A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301824A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301825A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301826A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301827A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301828A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301829A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301830A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301831A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301832A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301833A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301834A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301835A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301836A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301837A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301838A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301839A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301840A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301841A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301842A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301843A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301844A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301845A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301846A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301847A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301848A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301849A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301850A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301851A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301852A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301853A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301854A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301855A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301856A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301857A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301858A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301859A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301860A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301861A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301862A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301863A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301864A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301866A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301867A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301868A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301869A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301870A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301871A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301872A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301873A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301874A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301875A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301876A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301877A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301878A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301879A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301880A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301881A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301882A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301883A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301884A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301885A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301886A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301887A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301888A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301889A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301890A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301891A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301892A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301893A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301894A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301895A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301896A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301897A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301898A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301899A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301900A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301901A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301902A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301903A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301904A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301905A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301906A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301907A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301908A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301909A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301910A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301911A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301912A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301913A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301914A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301915A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301916A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301917A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301918A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301919A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301920A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301921A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301922A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301923A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301924A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301925A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301926A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301927A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301928A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301929A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301930A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301931A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301932A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301933A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301934A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301935A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301936A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301937A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301938A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301939A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301940A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301941A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301942A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301943A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301944A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301945A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301946A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301947A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301948A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301949A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301950A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301951A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301952A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301953A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301954A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301955A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301956A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301957A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301958A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301959A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301960A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301961A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301962A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301963A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301964A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301965A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301966A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301967A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301968A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301969A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301970A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301971A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301972A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301973A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301974A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301975A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301976A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301977A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301978A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301979A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301980A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301981A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301983A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301984A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301985A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301986A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301987A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301988A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301989A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301990A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301991A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301992A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301993A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301994A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301995A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301996A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301997A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301998A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4301999A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302000A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302001A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302002A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302003A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302004A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302005A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302006A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302007A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302008A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302009A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302010A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302012A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302013A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302014A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302015A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302016A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302017A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302018A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302019A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302020A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302021A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302022A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302023A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302024A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302025A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302026A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302027A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302028A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302029A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302030A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302031A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302032A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302033A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302034A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302035A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302036A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302037A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302038A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302039A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302040A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302041A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302042A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302043A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302044A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302045A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302046A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302047A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302048A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302049A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302050A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302051A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302052A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302053A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302054A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302055A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302056A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302057A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302058A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302059A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302060A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302061A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302062A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302063A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302064A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302065A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302066A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302067A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302068A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302069A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302070A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302071A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302072A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302073A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302074A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302075A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302076A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302077A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302078A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302079A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302080A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302081A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302082A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302083A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302084A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302085A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302086A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302087A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302088A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302089A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302090A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302091A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302092A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302093A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302094A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302095A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302096A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302097A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302098A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302099A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302100A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302101A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302102A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302103A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302104A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302105A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302106A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302107A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302108A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302109A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302110A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302111A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302112A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302113A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302114A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302115A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302116A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302117A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302118A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302119A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302120A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302121A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302122A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302123A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302124A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302125A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302126A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302127A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302128A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302129A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302130A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302131A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302132A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302133A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302134A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302135A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302136A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302137A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302139A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302140A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302141A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302142A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302143A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302144A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302145A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302146A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302147A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302148A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302149A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302150A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302151A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302152A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302153A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302154A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302155A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302156A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302157A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302158A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302159A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302160A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302161A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302162A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302163A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302164A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302165A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302166A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302167A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302168A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302169A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302170A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302171A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302172A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302173A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302174A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302175A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302176A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302177A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302178A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302179A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302180A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302181A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302182A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302183A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302184A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302185A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302187A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302188A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302189A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302190A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302191A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302192A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302193A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302194A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302195A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302196A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302197A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302198A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302199A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302200A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302201A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302202A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302203A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302205A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302206A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302207A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302208A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302209A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302210A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302211A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302212A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302213A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302214A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302215A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302216A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302217A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302218A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302219A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302220A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302221A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302222A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302223A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302225A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302226A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302227A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302228A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302229A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302230A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302231A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302232A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302233A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302234A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302235A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302236A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302237A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302238A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302239A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302240A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302241A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302242A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302243A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302244A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302245A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302246A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302247A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302248A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302249A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302250A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302251A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302252A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302253A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302254A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302255A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302256A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302257A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302258A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302259A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302260A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302261A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302262A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302263A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302264A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302265A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302266A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302267A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302268A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302269A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302270A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302271A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302272A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302273A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302274A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302275A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302276A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302277A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302278A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302279A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302280A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302281A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302282A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302283A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302284A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302285A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302286A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302287A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302288A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302289A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302290A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302291A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302292A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302293A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302294A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302295A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302296A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302297A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302298A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302299A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302300A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302301A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302302A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302303A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302304A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302305A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302306A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302307A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302308A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302309A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302310A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302311A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302312A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302313A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302314A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302315A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302316A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302317A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302318A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302319A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302320A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302321A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302322A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302323A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302324A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302325A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302326A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302327A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302328A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302329A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302330A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302331A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302332A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302333A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302334A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302335A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302337A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302338A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302339A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302340A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302341A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302342A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302343A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302344A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302345A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302346A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302347A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302348A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302349A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302350A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302351A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302352A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302353A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302354A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302355A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302356A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302357A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302358A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302359A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302360A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302361A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302362A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302363A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302364A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302365A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302366A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302367A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302368A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302369A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302370A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302371A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302372A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302373A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302374A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302375A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302376A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302377A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302378A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302379A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302380A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302381A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302382A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302383A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302384A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302385A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302386A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302387A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302388A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302389A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302390A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302391A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302392A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302393A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302394A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302395A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302396A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302397A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302398A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302399A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302400A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302401A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302402A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302403A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302404A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302405A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302406A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302407A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302408A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302409A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302410A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302411A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302412A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302413A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302414A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302415A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302416A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302417A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302418A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302419A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302420A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302421A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302422A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302423A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302424A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302425A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302426A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302427A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302428A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302429A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302430A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302431A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302432A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302433A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302434A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302435A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302436A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302437A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302438A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302439A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302440A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302441A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302442A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302443A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302444A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302445A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302446A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302447A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302448A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302449A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302450A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302451A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302452A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302453A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302454A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302455A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302456A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302457A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302458A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302459A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302460A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302461A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302462A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302463A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302464A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302465A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302466A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302467A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302468A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302469A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302470A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302471A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302472A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302473A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302474A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302475A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302476A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302477A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302478A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302479A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302480A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302481A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302482A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302483A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302484A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302485A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302486A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302487A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302488A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302489A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302490A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302491A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302492A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302493A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302494A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302496A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302497A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302498A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302499A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302500A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302501A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302502A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302503A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302504A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302505A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302506A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302507A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302508A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302509A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302510A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302511A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302512A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302513A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302514A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302515A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302516A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302517A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302519A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302520A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302521A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302522A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302523A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302524A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302525A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302526A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302527A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302528A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302529A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302530A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302531A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302532A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302533A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302534A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302535A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302536A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302537A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302538A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302539A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302540A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302541A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302542A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302543A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302544A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302545A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302546A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302547A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302548A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302549A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302550A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302551A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302552A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302554A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302555A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302556A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302557A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302558A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302559A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302560A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302561A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302562A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302563A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302564A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302567A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302568A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302569A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302570A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302571A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302572A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302573A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302574A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302575A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302576A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302577A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302578A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302579A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302580A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302581A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302582A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302583A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302584A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302585A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302586A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302587A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302588A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302589A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302590A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302591A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302592A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302593A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302594A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302595A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302596A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302597A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302598A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302599A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302600A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302601A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302602A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302603A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302604A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302605A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302606A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302607A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302608A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302609A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302610A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302611A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302612A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302613A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302614A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302615A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302616A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302617A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302618A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302619A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302620A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302621A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302622A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302623A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302624A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302625A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302626A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302627A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302628A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302630A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302631A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302632A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302633A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302634A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302635A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302636A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302637A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302638A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302639A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302640A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302641A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302642A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302643A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302644A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302645A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302646A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302647A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302649A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302650A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302651A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302652A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302653A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302654A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302655A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302656A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302657A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302658A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302659A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302660A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302661A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302662A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302663A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302664A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302665A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302666A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302667A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302668A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302669A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302670A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302671A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302672A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302673A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302674A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302675A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302676A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302677A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302678A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302679A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302680A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302681A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302682A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302683A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302684A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302685A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302686A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302687A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302688A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302689A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302690A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302691A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302692A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302693A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302694A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302695A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302696A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302697A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302698A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302699A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302700A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302701A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302702A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302703A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302704A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302705A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302706A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302707A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302708A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302709A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302710A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302711A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302712A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302713A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302714A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302715A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302716A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302717A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302718A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302719A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302720A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302721A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302722A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302723A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302724A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302725A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302726A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302727A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302729A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302730A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302731A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302732A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302733A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302734A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302735A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302736A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302737A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302738A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302739A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302740A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302741A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302742A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302743A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302744A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302745A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302746A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302747A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302748A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302749A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302751A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302752A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302753A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302754A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302755A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302756A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302757A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302758A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302759A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302760A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302761A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302762A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302763A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302764A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302765A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302766A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302767A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302768A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302769A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302770A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302772A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302773A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302774A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302776A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302777A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302778A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302779A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302780A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302782A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302783A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302784A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302785A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302786A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302787A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302788A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302789A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302790A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302791A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302792A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302793A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302794A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302795A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302796A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302797A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302798A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302799A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302800A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302801A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302802A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302803A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302804A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302805A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302806A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302807A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302808A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302809A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302811A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302812A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302813A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302814A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302815A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302816A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302817A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302818A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302819A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302820A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302821A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302822A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302823A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302824A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302825A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302826A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302827A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302828A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302829A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302830A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302831A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302832A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302833A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302834A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302835A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302836A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302837A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302838A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302839A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302841A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302842A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302843A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302844A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302845A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4302846A</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261945S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261946S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261947S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261948S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261949S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261950S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261951S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261952S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261953S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261954S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261955S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261956S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261957S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261958S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261959S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261960S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261961S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261962S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261963S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261964S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261965S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261966S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261967S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261968S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261969S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261970S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261971S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261972S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261973S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261974S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261975S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261976S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261977S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261978S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261979S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261980S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261981S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261982S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261983S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261984S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261985S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261986S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261987S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261988S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261989S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261990S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261991S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261992S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261993S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261994S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261995S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261996S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261997S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261998S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD261999S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262000S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262001S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262002S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262003S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262004S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262005S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262006S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262007S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262008S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262009S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262010S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262011S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262012S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262013S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262014S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262015S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262016S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262017S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262018S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262019S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262020S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262021S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262022S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262023S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262024S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262025S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262026S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262027S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262028S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262029S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262030S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262031S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262032S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262033S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262034S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262035S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262036S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262037S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262038S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262039S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262040S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262041S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262042S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262043S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262044S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262045S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262046S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262047S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262048S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262049S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262050S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262051S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262052S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262053S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262054S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262055S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262056S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262057S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262058S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262059S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262060S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262061S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262062S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262063S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262064S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262065S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262066S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262067S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262068S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USD262069S</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4793P</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4794P</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USPP4795P</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30801E</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30803E</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30804E</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30805E</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/USRE30806E</loc><lastmod>1981-11-24</lastmod></url><url><loc>https://patentgrep.com/patent/US4300240A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300241A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300243A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300245A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300246A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300247A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300248A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300249A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300250A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300251A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300252A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300253A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300254A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300255A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300256A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300257A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300258A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300259A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300260A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300261A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300262A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300263A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300264A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300265A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300266A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300267A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300268A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300269A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300270A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300271A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300272A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300273A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300274A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300275A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300276A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300277A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300278A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300279A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300280A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300281A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300282A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300283A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300284A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300285A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300286A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300287A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300288A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300289A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300290A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300291A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300292A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300293A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300295A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300296A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300297A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300298A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300299A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300300A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300301A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300302A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300303A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300304A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300305A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300306A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300307A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300308A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300309A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300310A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300311A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300313A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300314A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300315A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300316A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300317A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300318A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300319A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300320A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300321A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300322A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300323A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300324A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300325A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300326A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300327A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300328A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300329A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300330A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300331A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300332A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300333A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300334A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300335A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300336A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300337A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300338A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300339A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300340A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300341A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300342A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300343A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300344A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300345A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300346A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300347A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300348A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300349A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300350A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300351A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300352A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300353A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300354A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300355A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300356A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300357A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300358A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300359A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300360A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300361A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300362A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300363A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300364A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300365A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300366A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300367A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300368A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300369A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300370A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300371A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300372A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300373A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300374A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300375A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300376A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300377A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300378A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300379A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300380A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300381A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300382A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300383A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300384A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300385A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300386A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300387A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300388A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300389A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300390A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300391A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300392A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300393A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300394A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300395A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300396A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300397A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300398A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300399A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300400A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300401A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300402A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300403A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300404A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300405A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300406A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300407A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300408A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300409A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300410A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300411A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300412A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300413A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300414A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300415A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300416A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300417A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300418A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300419A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300420A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300421A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300422A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300423A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300424A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300425A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300426A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300427A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300428A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300429A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300430A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300431A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300432A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300433A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300434A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US43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/US4300490A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300491A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300492A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300493A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300494A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300495A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300496A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300497A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300498A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300499A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300500A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300501A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300502A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300503A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300504A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300505A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300506A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300507A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300508A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300509A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300510A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300511A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300512A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300513A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300514A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300515A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300516A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300517A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300518A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300519A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300520A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300521A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300522A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300523A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300524A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300525A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300526A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300527A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300528A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300529A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300530A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300531A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300532A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300533A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300534A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300535A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300536A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300537A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300538A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300539A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300540A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300542A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300543A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300544A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300545A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/p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grep.com/patent/US4300666A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300667A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300668A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300669A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300670A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300671A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300672A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300673A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300674A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300675A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300676A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300677A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300678A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300679A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300680A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300681A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300682A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300683A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300684A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300685A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300686A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300687A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300688A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300689A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300690A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300691A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300692A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300694A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300695A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300696A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300697A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300698A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300699A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300700A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300701A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300702A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300703A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300704A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300705A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300706A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300707A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300708A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300709A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300710A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300711A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300712A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300713A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300714A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300715A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300716A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300718A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300719A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300720A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300721A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300722A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://p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>https://patentgrep.com/patent/US4300837A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300838A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300839A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300840A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300841A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300842A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300843A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300844A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300845A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300846A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300847A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300848A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300849A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300850A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300851A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300852A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300853A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300854A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300855A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300856A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300857A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300858A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300859A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300860A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300861A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300862A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300863A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300864A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300865A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300866A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300867A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300868A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300869A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300870A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300871A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300872A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300873A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300874A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300875A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300876A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300877A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300878A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300879A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300880A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300881A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300882A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300883A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300884A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300885A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300886A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300887A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300888A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300889A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300890A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300891A</loc><lastmod>1981-11-17</lastmod></url><url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><url><loc>https://patentgrep.com/patent/US4300947A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300948A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300949A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300950A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300951A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300952A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300953A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300954A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300955A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300956A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300957A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300958A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300959A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300960A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300961A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300962A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300963A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300964A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300965A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300966A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300968A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300969A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300970A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300971A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300972A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300973A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300974A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300975A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300976A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300977A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300978A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300979A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300980A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300982A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300983A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300984A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300985A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300986A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300987A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300988A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300989A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300990A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300991A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300992A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300993A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300994A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300995A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300996A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300997A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300998A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4300999A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301000A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301001A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301002A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301003A</loc><lastmod>1981-11-17</lastmod>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tmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301280A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301281A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301282A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301283A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301284A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301285A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301286A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301287A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301288A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301289A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301290A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301291A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301292A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301293A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301294A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301295A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301296A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301297A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301298A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301299A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301300A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301301A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301302A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301304A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301305A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301306A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301307A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301308A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301309A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301310A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301311A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301312A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301313A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301314A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301315A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301316A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301317A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301318A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301319A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301320A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301321A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301322A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301323A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301324A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301325A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301326A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301327A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301328A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301329A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301330A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301331A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301332A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301333A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301334A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301335A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301336A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301337A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301338A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301339A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301340A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301341A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301343A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301344A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301345A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301346A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301347A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301348A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301349A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301350A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301351A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301352A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301353A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301354A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301355A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301356A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301357A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301358A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301359A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301360A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301361A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301362A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301363A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301364A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301365A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301366A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301367A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301368A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301369A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301370A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301371A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301372A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301373A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301374A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301375A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301376A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301377A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301378A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301379A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301380A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301381A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301382A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301383A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301384A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301385A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301386A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301387A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301388A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301389A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301390A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301391A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1449A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301450A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301451A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301452A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301453A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301454A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301455A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301456A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301457A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301458A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301459A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301460A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301462A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301463A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301465A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301466A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301467A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301468A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301469A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301470A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301471A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301472A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301473A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301474A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301475A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301476A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301477A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301478A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301479A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301480A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301481A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301482A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301483A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301484A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301485A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301486A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301487A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301488A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301489A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301490A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301491A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301492A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301493A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301494A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301495A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301496A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301497A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301498A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301499A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301500A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301501A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301502A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301503A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301504A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/US4301505A</loc><lastmod>1981-11-17</lastmod></url><url><loc>https://patentgrep.com/patent/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