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All Patents in class 137
Patents 316 - 330 of 360
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NumberDatePatenteeTitleType
2,314,827Mar. 23, 1943R.M. HortvetProcess for extracting pure nitrogen from air
2,319,964May 25, 1943F.C. WilsonHydraulic pressarbor presses
2,345,261Mar. 28, 1944O.M. JensenPower-driven hack saw machinemetal sawing machines
2,360,695Oct. 17, 1944R.H. McClellan, C.E. LindenHydraulic gear shifting and driving systemradial drill presses
2,365,748Dec. 26, 1944F.W. CurtisHydraulic Circuitmilling machines
2,384,169Sep. 04, 1945G.E. Huck, F.O. LuenbergerControlling pressure in a fluid-filled motorelectric motors
2,403,427Jul. 02, 1946O.H. LudemanValve Mechanismsteam valves
2,441,339May 11, 1948S.A. RivingtonHydraulic system
2,448,675Sep. 07, 1948P.L. LoeweControl mechanism for a plurality of motors
2,474,134Jun. 21, 1949A.P. WatersonHydraulic Tool Control Unitmetalworking machine mechanisms
2,592,884Apr. 15, 1952G.B. Fox, J.M. ShermanDishwasher
2,592,885Apr. 15, 1952G.B. Fox, J.M. ShermanMethod of and apparatus for washing dishes
2,592,886Apr. 15, 1952G.B. Fox, J.M. ShermanDisinfectant injector for dishwashers
2,600,746Jun. 17, 1952W. ErnstFluid Pressure Control Valvehydraulic apparatus
2,617,622Nov. 11, 1952I.M. WhiteAxially Movable Rotary Valvewater valves
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