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All Patents of Type: pipe wrenches
Patents 1 - 15 of 850
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NumberDatePatenteeTitleType
6,002Jan. 02, 1849S. Merrick, F.H. BartholomewScrew Wrench For Grasping Cylindrical Formspipe wrenches
15,184Jun. 24, 1856G.A. JenksWrench for Gas-Pipe, etc.pipe wrenches
18,135Sep. 08, 1857H.M. ClarkHinged Claw and Screw-Adjusting Gripper Wrenchpipe wrenches
23,857May 03, 1859G.B. PhillipsImprovement in Slide-Wrenches for Turning Gas Pipes and Other Round Articlespipe wrenches
24,175May 24, 1859H.J. BehrensImproved Gripping Wrenchpipe wrenches
26,530Dec. 20, 1859G. SmithImprovement in Grippers for Grasping and Turning Cylindrical Articlespipe wrenches
27,622Mar. 27, 1860J.H. DoolittleImproved Pipe-Wrenchpipe wrenches
28,053May 01, 1860W.F. BeecherPipe-Wrenchpipe wrenches
30,579Nov. 06, 1860W. KearneyImprovements in Wrenches for Pipes and Stud-Boltspipe wrenches
31,034Jan. 01, 1861E. RipleyImprovements in Wrenches for Turning Pipes, Round Bolts, and Similar Articlespipe wrenches
31,826Mar. 26, 1861C.H. ReynoldsImproved Screw-Wrenchpipe wrenches
32,453May 28, 1861G.B. PhillipsPipe Wrenchpipe wrenches
33,223Sep. 03, 1861J.A. WilcoxInstrument For Turning Pipe or Other Round Rodspipe wrenches
35,950Jul. 22, 1862H.F. ReadImproved Pipe-Wrench for Screwing and Unscrewing Metal Pipespipe wrenches
35,971Jul. 22, 1862J.H. DoolittlePipe Wrenchpipe wrenches
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