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All Patents in class 81/99
Patents 1 - 15 of 109
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NumberDatePatenteeTitleType
18,135Sep. 08, 1857H.M. ClarkHinged Claw and Screw-Adjusting Gripper Wrenchpipe wrenches
30,997Dec. 18, 1860A.E. WenzelAutomatic Lathe Doglathe dogs
34,498Feb. 25, 1862A.H. Pierce, F. HollenNut Wrenchnut wrenches
36,289Aug. 26, 1862H.V. FariesImproved Wrench for Grasping and Turning Gas-Pipes, Bolts and Any Article of Cylindrical Formpipe wrenches
37,395Jan. 13, 1863H. GettyImproved Self-Adjusting Pipe Tongsself-adjust wrenches
44,703Oct. 18, 1864J.R. BrownImproved Pipe-Wrenchpipe wrenches
65,465Jun. 04, 1867J.B. BarnesImprovement in Pipe and Stud-Wrenchesself-adjust wrenches
78,176May 26, 1868J.B. BarnesImprovement in Wrenchespipe wrenches
118,891Sep. 12, 1871J.A. Wilcox, W.S. WilcoxImprovement in Pipe Wrenchpipe wrenches
121,372Nov. 28, 1871H.A. HyleImprovement in Wrenchespipe wrenches
131,252Sep. 10, 1872J. CraigImprovement in Self-Adjusting Pipe Wrenchespipe wrenches
136,351Feb. 25, 1873T. WilliamsImprovement in Self-Adjusting Pipe Wrenchespipe wrenches
145,263Dec. 02, 1873H.B. WheatcroftPipe-Wrenchespipe wrenches
165,725Jul. 20, 1875L. GlynnImprovement in Pipe-Tongspipe tongs
172,365Jan. 18, 1876A.F. Gates, E.H. AdamsPipe-Wrenchself-adjust wrenches
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