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All Patents in class 81/106
Patents 1 - 15 of 70
First set of recordsNext set of recordsLast set of records
27,622Mar. 27, 1860J.H. DoolittleImproved Pipe-Wrenchpipe wrenches
33,223Sep. 03, 1861J.A. WilcoxInstrument For Turning Pipe or Other Round Rodspipe wrenches
55,190May 29, 1866W.W. WillsImprovemetnt in Pipe-Wrenchesscrew adjust wrenches
68,431Sep. 03, 1867J.N. FreestoneImproved Pipe-Wrenchpipe wrenches
96,776Nov. 16, 1869J.W. CloseImprovement in Combined Screw and Pipe-Wrench and Pipe-Cuttercombination tools
104,913Jun. 28, 1870J.A. WilcoxImprovement In Pipe-Wrenchpipe wrenches
111,422Jan. 31, 1871O.G. BarrettPipe Wrenchwrench jaw components
121,372Nov. 28, 1871H.A. HyleImprovement in Wrenchespipe wrenches
155,485Sep. 29, 1874J. BedmanPipe-Wrenchespipe wrenches
168,852Oct. 19, 1875W.K. StevensImprovement in Pipe-Wrenchespipe wrenches
189,621Apr. 17, 1877E.R. GirvinPipe-Tongs Or Wrenchespipe wrenches
212,468Feb. 18, 1879S.W. HudsonPipe-Wrenchpipe wrenches
217,407Jul. 08, 1879H. RhynPipe-Wrenchpipe wrenches
221,989Nov. 25, 1879J. WoolfordRatchet-Wrenchself-adjust wrenches
227,892May 25, 1880L. GlynnImprovements in Pipe and Nut Wrenchesscrew adjust wrenches
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