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Patents for Erwin G. Roehm
Patents 31 - 45 of 54
First set of recordsPrevious set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
2,139,173Dec. 06, 1938M. Romaine, E.G. RoehmControl Circuit for Broaching Machinesbroaching machines
2,164,884Jul. 04, 1939E.G. Roehm, L.F. NenningerOperating Control Mechanism for Milling Machinesmilling machines
2,209,469Jul. 30, 1940E.G. Roehm, L.F. NenningerOperating Control Mechanism for Milling Machinesmilling machines
2,235,085Mar. 18, 1941H. Fritschi, E.G. RoehmMilling Machine Transmission and Control Mechanismmilling machines
2,239,625Apr. 22, 1941H. Fritschi, E.G. RoehmProfile Milling Machinemilling machines
2,302,575Nov. 17, 1942E.G. Roehm, M. RomaineBacklash Eliminator for Spindle Drivesmetalworking machine mechanisms
2,332,532Oct. 26, 1943E.G. RoehmDual Pattern Controlled Machine Toolmilling machines
2,332,533Oct. 26, 1943E.G. RoehmTracer Mechanismprofiling machines
2,489,227Nov. 22, 1949H. Fritschi, E.G. RoehmMilling Machinemilling machines
2,535,957Dec. 26, 1950E.G. Roehm, M. RomainePrecision Positioning Mechanismmetalworking machine mechanisms
2,618,244Nov. 18, 1952E.G. RoehmPilot Valve Controlled Tracer Valvehydraulic apparatus
2,622,486Dec. 23, 1952H. Fritschi, E.G. RoehmSpindle Transmission and Positioning Mechanismmetalworking machine mechanisms
2,622,489Dec. 23, 1952E.G. RoehmTracer Control Mechanismmilling machines
2,633,061Mar. 31, 1953H. Fritschi, E.G. RoehmMilling Machine Control Mechanismmilling machines
2,641,969Jun. 16, 1953E.G. RoehmMachine Tool Control Mechanismprofiling machines
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