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All Patents in class 74/519
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
96,636Nov. 09, 1869G.N. TibblesTraction Enginesteam traction engines
151,364May 26, 1874J.W. DouglasImprovement in the construction of pump-gearinghousehold hand pumps
215,808May 27, 1879G.H. CorlissBeam for Steam Enginessteam engines
989,708Apr. 18, 1911L.G. Neely, C.L. HeislerSwing Frame for Pumping Oil Wellsoilfield machinery
1,258,952Mar. 12, 1918J.M. ShortDrilling Machine
1,835,842Dec. 08, 1931G.H. Benzon, Jr.Feed Mechanismmetal planers
2,005,696Jun. 18, 1935G. Horner, P.M. Henkes, G. GortonMachine Toolmilling machines
2,337,513Dec. 21, 1943O.H. WatsonComposite Lever for Weighing Scalesscales and balances
2,631,576Mar. 17, 1953C.H. SchowalterValve Operating Mechanisminternal combustion engine valves
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