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All Patents in class 92
Patents 16 - 30 of 241
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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
103,212May 17, 1870H.E. LongRotary Steam Enginesteam engines
109,372Nov. 22, 1870B. Fitts, P. BallImprovement in liquid-meters
113,144Mar. 28, 1871N.T. CoffinImprovement in pumps
114,427May 02, 1871P. EstesImprovement in Piston-Packingspiston ring and packing
118,463Aug. 29, 1871C. LeveyImprovement in steam-enginessteam engines
122,248Dec. 26, 1871D.A. GreeneReciprocating Enginessteam engines
125,166Apr. 02, 1872G.B. BraytonImprovement in Gas Enginesgas and gasoline engines
128,062Jun. 18, 1872C.W. PattenImprovment in Rotary Steam-Enginesrotary steam engines
129,635Jul. 16, 1872W.I. WeedImprovment in Rotary Enginesrotary steam engines
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