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All Patents in class 92
Patents 16 - 30 of 402
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NumberDatePatenteeTitleType
30,138Sep. 25, 1860G. FrostCut-off valve for steam-enginessteam check valves
31,303Feb. 05, 1861T.S. DavisSteam Engine Valvesteam engine pistons
33,299Sep. 17, 1861B. DouglasPump standhousehold hand pumps
38,187Apr. 14, 1863J. TangyeImprovement in hydraulic lifting-jackshydraulic jacks
38,606May 19, 1863C.E. RymesImprovement in hydraulic presseshydraulic presses
42,336Apr. 19, 1864E.D. AshePropeller Enginerotary steam engines
43,362Jun. 28, 1864W. WrightOscillating Steam Engineoscillating steam engines
43,912Aug. 23, 1864M. HittingerImprovement in hydraulic presseshydraulic presses
66,972Jul. 23, 1867J.L. LayCompound Steam Enginesteam engines
67,659Aug. 13, 1867N.A. Otto, E. LangenGas Enginegas and gasoline engines
76,268Mar. 31, 1868W. SwaynePistonhot air engines
78,911Jun. 16, 1868J.U. AdamsPiston Packingsteam engine packing
82,437Sep. 22, 1868F.S. PeaseCompound Steam Enginesteam engines
97,231Nov. 23, 1869J.B. RootSteam Enginesteam engines
102,704May 03, 1870G.H. PeekSmith's Bellowsblacksmith
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