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All Patents of Type: tap and die holders
Patents 1 - 6 of 6
First set of recordsLast set of records
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
1,506,484Aug. 26, 1924L.F. HartDiestocktaps and dies
1,603,605Oct. 19, 1926C. JobstDie Head for Thread Cutting Toolstap and die holders
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