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Patents Granted on 1953-06-23
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,642,848Jun. 23, 1953R.G. Knudsen, G.M. WalravenAir Valve Mechanism for Controling the Operation of Pneumatic Devices and the Like
2,642,902Jun. 23, 1953E.L. CareyPlaning attachment for jointerswood planers
2,643,357Jun. 23, 1953L.D. ClarkInstantly reversible motormotor controls
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