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Patents Granted on 1957-12-31
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,817,902Dec. 31, 1957E.L. Allman, Sr.Adjustable Tool Holdermetalworking machine tool holders
2,817,982Dec. 31, 1957W.G. HoelscherSelf Equalizing Head Clamping Mechanismmetalworking machine mechanisms
2,817,990Dec. 31, 1957C.E. MillerAutomatic Latheautomatic lathes
2,817,992Dec. 31, 1957J. GaynorRadius Turning Mechanismmetalworking machine mechanisms
2,818,002Dec. 31, 1957J.J. Lenert, O.W. BarkerTransfer Machinesmilling machines
2,818,115Dec. 31, 1957C.E. ParkerVeneer clipperveneer machines
2,818,147Dec. 31, 1957W. Ziegler, C.A. Mattson, A.W. MallEngine governor and clutchindustrial machine clutches
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