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Patents Granted on 1981-04-14
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,261,233Apr. 14, 1981J.W. KonecayRatchet Wrench of the Socket Drive Typeratchet wrenches
4,261,675Apr. 14, 1981F. ZanklMachine tool with pulsating cutting force
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