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All Patents of Type: taps and dies
Patents 1 - 15 of 34
First set of recordsNext set of recordsLast set of records
20,168May 04, 1858R. NuttallCutting Screwstaps and dies
40,203Oct. 06, 1863C.C. WalworthScrew Cutting Taptaps and dies
40,386Oct. 20, 1863C.C. WalworthScrew Cutting Taptaps and dies
114,935May 16, 1871G.H. FoxImprovement in screw-tapstaps and dies
164,481Jun. 15, 1875V.J. ReeceImprovement in screw-cutting diestaps and dies
184,097Nov. 07, 1876J.W. MelvinScrew-Taptaps and dies
186,890Jan. 30, 1877A.J. SmartImprovement in screw-cutting diestaps and dies
198,945Jan. 08, 1878J.M. JohnsonImprovement in collapsible screw-tapstaps and dies
311,549Feb. 03, 1885F.E. WellsDie-stocktaps and dies
385,543Jul. 03, 1888A. BurrittTap with Detachable Cutterstaps and dies
425,655Apr. 15, 1890W.E. CanedyScrew-cutting die and stocktaps and dies
442,827Dec. 16, 1890C.P. RussellScrew-cutting dietaps and dies
442,828Dec. 16, 1890C.P. RussellScrew-cutting dietaps and dies
490,676Jan. 31, 1893H.W. OsterAdjustable die-stocktap wrenches and die stocks
541,209Jun. 18, 1895G.S. LongScrew-cutting tooltaps and dies
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