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All Patents in class 81/97
Patents 1 - 15 of 93
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NumberDatePatenteeTitleType
6,002Jan. 02, 1849F.H. Bartholomew, S. MerrickScrew Wrench For Grasping Cylindrical Formspipe wrenches
12,510Mar. 13, 1855J. HydeImprovement in Screw-Wrenchesquick adjust wrenches
14,424Mar. 11, 1856E. TracyWrenchnut wrenches
15,184Jun. 24, 1856G.A. JenksWrench for Gas-Pipe, etc.pipe wrenches
24,175May 24, 1859H.J. BehrensImproved Gripping Wrenchpipe wrenches
26,951Jan. 24, 1860J.E. NeillImproved Gripping Wrenchnut wrenches
28,053May 01, 1860W.F. BeecherPipe-Wrenchpipe wrenches
30,579Nov. 06, 1860W. KearneyImprovements in Wrenches for Pipes and Stud-Boltspipe wrenches
32,453May 28, 1861G.B. PhillipsPipe Wrenchpipe wrenches
35,950Jul. 22, 1862H.F. ReadImproved Pipe-Wrench for Screwing and Unscrewing Metal Pipespipe wrenches
43,926Aug. 23, 1864W. PearsonPipe Wrenchpipe wrenches
50,748Oct. 31, 1865J.C. Chapman, D.C. StillsonImproved Tool for Turning Gas-Pipe, etc.pipe wrenches
59,852Nov. 20, 1866J. McLarenImprovement in Wrenchespipe and nut combination wrenches
79,306Jun. 30, 1868C. Lyon, W. BradshawWrenchwrenches
118,141Aug. 15, 1871A.P. LordWrenchquick adjust wrenches
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