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Patents Granted on 1949-05-10
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,469,543May 10, 1949T.M. BondhusCounterboring devicedrill bits
2,469,572May 10, 1949L.E. PrattReverisble Friction Clutch Wrenchratchet wrenches
2,469,674May 10, 1949E.J. WitchgerTape ruletape measures
2,469,881May 10, 1949V.J. Kramer, R.C. Johnson, H.E. LaubachHeadstock Transmission Gear Shifting Mechanismmetalworking machine mechanisms
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