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All Patents in class 74/353
Patents 1 - 13 of 13
First set of recordsLast set of records
432,418Jul. 15, 1890A.J. Martin, L. HeathChangeable-speed gearing
465,827Dec. 29, 1891H.C. BradfordTapping and Thread Cutting Machinetapping machines
489,317Jan. 03, 1893A. MillTapping attachment for drillstapping machines
494,383Mar. 28, 1893O.E. PerrigoEngine-Latheengine lathes
536,615Apr. 02, 1895E. FlatherScrew Cutting Lathescrewcutting lathes
679,568Jul. 30, 1901E.A. MullerEngine Lathemetal lathes
684,433Oct. 15, 1901H.R. IslerDifferential Speed Mechanismmetal lathes
759,111May 03, 1904I.H. Johnson, Jr.Variable Speed Gear for Motor Diven Lathes or Other Toolsmetalworking speed changing mechanisms
780,642Jan. 24, 1905W.W. EarlSpeed-changing mechanismmetal planers
922,880May 25, 1909E.J. McClellan, G.K. GarvinSpeed Change Gearingmetalworking speed changing mechanisms
1,659,426Feb. 14, 1928C.M. ConradsonMilling Machinemilling machines
2,281,921May 05, 1942F.W. CurtisTumble Change Gear Mechanismmilling machines
2,285,743Jun. 09, 1942H.E. MusselmanMilling machine
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