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All Patents in class 91/471
Patents 1 - 6 of 6
First set of recordsLast set of records
5,765Sep. 12, 1848F.E. SickelsMethod of Controlling Motive Powerpower hammers
6,162Mar. 10, 1849G.H. CorlissCut-Off and Working the Valves of Steam Enginessteam engines
RE200May 13, 1851G.H. CorlissImprovements in Cut-Off and Working the Valves of Steam Engines steam engines
13,276Jul. 17, 1855A. Ferguson, J.B. StottCross-Head Attachment for Working Steam-Engine Valvessteam engine valve gear
359,865Mar. 22, 1887E. HillValve Gearsteam engine valve gear
3,132,485May 12, 1964J.R. WatsonHydraulic Motor Control
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