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All Patents in class 91/517
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,353,656Sep. 21, 1920C.L. HeislerFluid Operated Motorsteam turbines
1,653,350Dec. 20, 1927W. ErnstHigh Speed Hydraulic Press hydraulic presses
1,851,622Mar. 29, 1932W. ErnstValve Mechanism for Hydraulic Presses hydraulic presses
1,899,678Feb. 28, 1933R. Thoreson, H.F. MacMillin, W. ErnstHydraulic Press hydraulic presses
2,353,246Jul. 11, 1944M.T. KnutzenControl means for power-operated machine
2,393,918Jan. 29, 1946R.H. McClellan, C.E. LindenHydraulic operating and control mechanismradial drill presses
2,713,246Jul. 19, 1955H. Fritschi, A.H. DallTracer Control Mechanism Having Independent Rate and Direction Controlprofiling machines
3,003,472Oct. 10, 1961D.C. Miller, R.M. FerrisQuill Actuating and Clamping Mechanismmilling machines
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