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All Patents of Type: tap and die holders
Patents 1 - 12 of 12
First set of recordsLast set of records
NumberDatePatenteeTitleType
28,279May 15, 1860Z.L. JacobsScrew Platetap and die holders
48,476Jun. 27, 1865L. Yale, Jr.Apparatus for Reversing the Motion of Screw-Tapstap and die holders
52,294Jan. 30, 1866T. KennedyImproved Screw-Cutting Chucktap and die holders
311,549Feb. 03, 1885F.E. WellsDie-stocktaps and dies
490,676Jan. 31, 1893H.W. OsterAdjustable die-stocktap wrenches and die stocks
771,328Oct. 04, 1904C.N. SchooleyTooltap and die holders
876,723Jan. 14, 1908W.A. LeonardTap Holdertap and die holders
1,037,796Sep. 03, 1912W.L. ProcunierBit and tap and die chucktap and die holders
1,117,241Nov. 17, 1914W.L. ProcunierBit and tap chuckdrill press chucks
1,506,484Aug. 26, 1924L.F. HartDiestocktaps and dies
1,603,605Oct. 19, 1926C. JobstDie Head for Thread Cutting Toolstap and die holders
1,873,476Aug. 23, 1932H.G. ProcunierTap holdertap and die holders
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