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Patents for Richard J. Welles
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
167,717Sep. 14, 1875R.J. WellesImprovement in Monkey-Wrenchesscrew adjust wrenches
277,859May 15, 1883R.J. WellesCountersinks for Chamfering Bits and Drillscountersinks
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