E01C 23/01

Devices or auxiliary means for setting-out or checking the configuration of new

Official title: Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed {or reference line} supports (form rails E01C19/50); Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs (E01C23/07 takes precedence; measuring roughness or irregularity in general G01B)

E01C23/01 (Devices or auxiliary means for setting-out or checking the configuration of new) appears on 316 US grants and 399 published applications in this corpus.

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316
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399
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168
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742
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29 Sep 2026

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E01C 23/01: granted patents and published applications per publication year
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197810
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198500
198610
198710
198800
198910
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199120
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199310
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200233
200332
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200904
201032
201102
201225
2013410
2014712
2015611
20161026
20171523
20182222
20192827
20202130
20212134
20222739
20233043
20242737
20253540
20262620

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