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All Patents in class 408/239R
Patents 1 - 15 of 29
First set of recordsNext set of recordsLast set of records
187,600Feb. 20, 1877G. CollinsCombination Countersink, Screwdriver & Gimlet Bitcountersinks
243,978Jul. 05, 1881G.S. RomingerThree-jaw chuck with self-aligning jaws
295,904Apr. 01, 1884M.S. BrooksTap Wrenchtap wrenches and die stocks
442,828Dec. 16, 1890C.P. RussellScrew-cutting dietaps and dies
460,922Oct. 06, 1891S.B. MinnichCompensating bit-holder
464,659Dec. 08, 1891A.E. BrionTap Wrenchtap wrenches and die stocks
506,961Oct. 17, 1893F.C. WilliamsTap Wrenchtap wrenches and die stocks
720,554Feb. 17, 1903C. BeneshCombined Wrench and Thread Cutteralligator wrenches
807,166Dec. 12, 1905C.W. GrantTool-holder and toollathe tool holders
809,755Jan. 09, 1906W.F. Frenk, H.A. SmithToolwrench combination tools
828,859Aug. 14, 1906J. MerckensCombined Wrench and Thread Retracing Toolwrench combination tools
868,812Oct. 22, 1907L. RueggBit holder
1,724,497Aug. 13, 1929G.M. MehlThreading diepipe threading machines
1,898,132Feb. 21, 1933W.B. du Mont, O.E. KoehlerThread cutting die and holding clip therefortap wrenches and die stocks
2,293,866Aug. 25, 1942A. TalchMethod of Making Tap Wrenchestap wrenches and die stocks
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