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All Patents in class 408/158
Patents 1 - 15 of 33
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NumberDatePatenteeTitleType
295,466Mar. 18, 1884J.B. WallaceCutting Tooldrill bits
346,103Jul. 27, 1886C. HollyMilling Toolmilling machine cutters
422,340Feb. 25, 1890F.N. GardnerDie for Screw Cuttingtap and die holders
432,972Jul. 29, 1890L.T. BowmanBolt Threading Machinemetal threading machines
536,815Apr. 02, 1895W. MurcheyNipple Cutting Machinepipe cutting machines
578,802Mar. 16, 1897G.E. WitherellThread Cuttertap and die holders
642,312Jan. 30, 1900F.A. ErringtonAutomatically Opening or Closing Dietaps and dies
757,494Apr. 19, 1904W. PohlmanExpansion Boring Toolboring heads
909,749Jan. 12, 1909I.W. Sprink, F.L. BrownAdjustable Collapsing Taptapping heads and chucks
1,038,670Sep. 17, 1912O.A. SmithThreading Die
1,076,188Oct. 21, 1913B. BordenThread-cutting tooltaps and dies
1,132,536Mar. 16, 1915A.J. PranceScrew-cutting taptapping heads and chucks
1,148,510Aug. 03, 1915W.H. GatesSelf Opening Adjustable Die Headtap and die holders
1,209,306Dec. 19, 1916V.R. KoontzCollapsible taptaps and dies
1,345,744Jul. 06, 1920R.A. BoehmCollapsible Tap taps and dies
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