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All Patents of Type: taps and dies
Patents 1 - 15 of 28
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NumberDatePatenteeTitleType
20,168May 04, 1858R. NuttallCutting Screwstaps and dies
40,203Oct. 06, 1863C.C. WalworthScrew Cutting Taptaps and dies
40,386Oct. 06, 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
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
572,445Dec. 01, 1896B.W. PrenticeSectional expansion-taptaps and dies
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