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Patents Granted on 1957-12-17
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,816,462Dec. 17, 1957S.M. BabbittPrecision boring machinevertical boring mills
2,816,487Dec. 17, 1957J.L. Martin, H.L. Heywood, J.B. ArmitageMilling Machinemilling machines
2,816,489Dec. 17, 1957A.P. Smith, L.W. RobbinsSine platemilling machine accessories
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