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All Patents in class 470/75
Patents 1 - 15 of 18
First set of recordsNext set of recordsLast set of records
20,168May 04, 1858R. NuttallCutting Screwstaps and dies
24,152May 24, 1859J. Kirkpatrick, R. NuttallCutting Screwscutting-off and centering machines
56,840Jul. 31, 1866J. WolfendenRest Holder for Turning Lathesmetal lathe accessories
79,971Jul. 14, 1868E. GouldImproved screw-threading machine
106,458Aug. 16, 1870G. BlakeMachine for Cutting Shafts and Pipes and for Cutting Screw Threadsmetalworking machines
111,248Jan. 24, 1871S.W. Putnam, Jr.Improvement in machines for cutting screw-threads on boltsmetal threading machines
265,639Oct. 10, 1882A. SaundersChuckpipe threading machines
309,374Dec. 16, 1884G.W. Whitman, M.C. BignallPipe cutting and threading machinepipe cutting machines
406,857Jul. 09, 1889A. SaundersScrew Cutting Diepipe threading machines
417,659Dec. 17, 1889J.S. BancroftMeans for Operating the Die Heads of Bolt Threading Machinesmetal threading machines
443,500Dec. 30, 1890L.B. Curtis, R.P. CurtisPipe Threading Machinepipe threading machines
443,775Dec. 30, 1890C.L. LibbyAttachment for Turret Lathesmetal lathe accessories
649,733May 15, 1900J.P. LavigneDie Head
841,396Jan. 15, 1907F.W. HoeferMachine for Threading Pipespipe threading machines
1,221,193Apr. 03, 1917A.B. LandisCutter-headmetal threading machines
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