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Patents Granted on 1953-06-30
Patents 1 - 8 of 8
First set of recordsLast set of records
2,643,459Jun. 30, 1953S.G. Snortland, B.E. BeersMeasuring Device for Pistons in Depth Enginesspecial purpose gauges
2,643,460Jun. 30, 1953W.P. Adair, H.W. Dietert, E.C. ZirzowHardness 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 Devicemetalworking machine mechanisms
2,643,585Jun. 30, 1953F.J. Lapointe, E.J. LapointeBroaching machinebroaches
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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