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All Patents of Type: taps and dies
Patents 1 - 15 of 147
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NumberDatePatenteeTitleType
20,168May 04, 1858R. NuttallCutting Screwstaps and dies
28,747Jun. 19, 1860E.P. GleasonDie plate for cutting screwstaps and dies
40,203Oct. 06, 1863C.C. WalworthScrew Cutting Taptaps and dies
40,386Oct. 20, 1863C.C. WalworthScrew Cutting Taptaps and dies
47,543May 02, 1865B.S. HillDie for Cutting Male-Screw Threadstaps and dies
54,096Apr. 24, 1866B.F. BeeImproved screw-taptaps and dies
71,605Dec. 03, 1867W.T. GillinderForming Threads on Sheet Metal Capstaps and dies
79,637Jul. 07, 1868J.E. ConorImprovement in Pressestaps and dies
82,118Sep. 15, 1868A. HoermannDie for Cutting Screwstaps and dies
GB-186,901,263Apr. 24, 1869A. MuirImprovements in stocks and dies for screwing bolts and other articlestaps and dies
93,824Aug. 17, 1869W. HumphreysImproved Compound Tool for Water and Gas Pipespipe reamers
104,234Jun. 14, 1870J.E. WeaverImproved Die for Cutting Screw Threads on Boltstaps and dies
114,935May 16, 1871G.H. FoxImprovement in screw-tapstaps and dies
115,291May 30, 1871L.R. FaughtImprovement in die-stocks for cutting screwstaps and dies
129,376Jul. 16, 1872W. TuckerImprovement in Screw Tapstaps and dies
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