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All Patents in class 74/2
Patents 1 - 8 of 8
First set of recordsLast set of records
37,063Dec. 02, 1862J. TremperImprovement in variable cut-off gears for steam-enginessteam engine governors
162,101Apr. 13, 1875G.H. ReynoldsValve Gear for Steam Enginessteam engine valve gear
215,797May 27, 1879G.H. CorlissValve-Gear for Steam-Enginessteam engine valve gear
268,523Dec. 05, 1882J. NesbittElectric device for operating the throttle-valves of steam-enginessteam engine valve gear
642,146Jan. 30, 1900M.R. MooreValve Gearsteam engine valve gear
923,591Jun. 01, 1909C.G. SpradoGas Enginegovernors
2,455,270Nov. 30, 1948J.A. RavellaAutomatic striking toolpunches
2,925,747Feb. 16, 1960J.B. Lukey, J.B. ArmitageMachine Toolsmilling machines
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