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All Patents in class 81/68
Patents 1 - 15 of 66
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NumberDatePatenteeTitleType
114,348May 02, 1871E.H. RobbinsImproved Pipe-Hookchain and strap wrenches
122,638Jan. 09, 1872C. NeamesCombined Gas-Pipe Wrench, Gas-Pipe Vise and Square Wrenchpipe wrenches
219,758Sep. 16, 1879R.R. PiperPipe-Wrenchchain and strap wrenches
235,957Dec. 28, 1880J.O. MorsePipe Tongschain and strap wrenches
238,761Mar. 15, 1881J.J. CarmodyPipe Wrenchchain and strap wrenches
241,674May 17, 1881W.T. KosinskiPipe Wrenchchain and strap wrenches
249,968Nov. 22, 1881T.D. MernanPipe Wrenchchain and strap wrenches
250,186Nov. 29, 1881L.J. BakerBit-stockeggbeater drills
257,344May 02, 1882W.T. KosinskiDevice For Converting Motionchain and strap wrenches
282,372Jul. 31, 1883E.H. RobbinsPipe Wrenchchain and strap wrenches
298,294May 06, 1884J. DoylePipe Wrenchchain and strap wrenches
337,627Mar. 09, 1886F.H. SeymourPipe Wrench Attachment For Monkey Wrencheschain and strap wrenches
348,751Sep. 07, 1886J. LeibPipe Wrenchchain and strap wrenches
354,197Dec. 14, 1886J. LeibPipe Wrenchchain and strap wrenches
366,451Jul. 12, 1887W.H. BrockChain Wrenchchain and strap wrenches
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