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All Patents in class 92
Patents 226 - 240 of 428
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NumberDatePatenteeTitleType
1,255,081Jan. 29, 1918G.L. CowanPistonwood grinding machines
1,268,270Jun. 04, 1918R.W. NazelFluid-power hammerdrop hammers
1,268,624Jun. 04, 1918F.E. RileyAutomatic Grindstone Dressermill stone dressers
1,278,157Sep. 10, 1918C. JohnsonOperating Means for Saw Carriagessawmill carriages
1,284,108Nov. 05, 1918C.A. HultquistDrilling Machine
1,293,713Feb. 11, 1919H.A. ChuseSteam Enginesteam engine valves
1,348,256Aug. 03, 1920F.L. WadsworthSteam Enginesteam engines
1,349,884Aug. 17, 1920F.H. HopkinsDiaphragm Gagevacuum and pressure gauges
1,353,656Sep. 21, 1920C.L. HeislerFluid Operated Motorsteam turbines
1,364,823Jan. 04, 1921J.J. AullGas Engine Primerfuel primers
1,385,134Jul. 19, 1921F.A. JimersonBit-chuck retainerdrill press chucks
1,411,025Mar. 28, 1922C.B. Jahnke, F.G. HobartOil Engine Feeding Devicefuel injection apparatus
1,450,032Mar. 27, 1923J.W. GardnerCompressor mechanismair compressors
1,463,305Jul. 31, 1923S.D. Black, A.G. DeckerPumping apparatus
1,493,650May 13, 1924G.D. SundstrandRubbing machinesanding machines
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