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Patents Granted on 1953-06-30
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,643,441Jun. 30, 1953K.F. GallimoreMachine Toolhorizontal boring mills
2,643,459Jun. 30, 1953S.G. Snortland, B.E. BeersMeasuring Device for Pistons in Depth Enginesspecial purpose gauges
2,643,460Jun. 30, 1953E.C. Zirzow, W.P. Adair, H.W. DietertHardness Testing Indicator
2,643,554Jun. 30, 1953E. SperisenBoring Bar Pilot Supportmetalworking machine tool holders
2,643,570Jun. 30, 1953W.R. Meyer, H.J. SiekmannMultiple Station Center Drive Crankshaft Lathemetalworking machine mechanisms
2,643,571Jun. 30, 1953E.P. Bullard, IIIMachine Tool Centering Device
2,643,585Jun. 30, 1953F.J. Lapointe, E.J. LapointeBroaching machinebroaching machines
2,643,827Jun. 30, 1953W.H. FranzmannWinding apparatus
2,644,131Jun. 30, 1953W.R. Elwell, G.M. WalravenTiming Indicator for Internal Combustion Engines
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