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All Patents in class 81/117
Patents 1 - 15 of 20
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NumberDatePatenteeTitleType
173,845Feb. 22, 1876E.G. ClinchPipe-Wrenchpipe wrenches
207,182Aug. 20, 1878B.S. HyersImprovements in Pipe and Nut Wrenchespipe and nut combination wrenches
366,246Jul. 12, 1887R.W. PhilipsSelf-Adjusting Pipe Wrenchself-adjust wrenches
382,391May 08, 1888G.G. SmithPipe Wrenchpipe wrenches
421,023Feb. 11, 1890J.W. McCoy, W.G. BartlettPipe Wrenchalligator wrenches
503,677Aug. 22, 1893S.W. PutnamWrenchwrenches
507,587Oct. 31, 1893T.C. LippittNut Wrenchscrew adjust wrenches
556,834Mar. 24, 1896D.R. PorterPipe Wrenchpipe wrenches
615,643Dec. 06, 1898J.F. StrahleWrenchalligator wrenches
625,716May 23, 1899C. BaxterSpannerscrew adjust wrenches
649,092May 08, 1900J. WillmannWrenchpipe wrenches
933,096Sep. 07, 1909W.H. MunroWrenchpipe wrenches
972,052Oct. 04, 1910J. BoulieuWrenchself-adjust wrenches
1,305,571Jun. 03, 1919A. SporupAutomatically Adjustable Wrenchself-adjust wrenches
1,332,922Mar. 09, 1920I.J. ShortSelf-Adjustable Wrenchself-adjust wrenches
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