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Patents Granted on 1923-05-29
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,456,620May 29, 1923G.W. CaryWrenchself-adjust wrenches
1,456,692May 29, 1923J.M. HargraveRatchet hand toolscrewdriver handles
1,456,799May 29, 1923F. HardingeOil burnerindustrial furnaces
1,456,864May 29, 1923C.W. Blood, C.G. OstemanSide-head construction for matchers and the likematchers
1,456,938May 29, 1923A.W. SchoofInstument for Testing and Comparing the Lead of a Screw Threadmeasurement gauges
1,457,020May 29, 1923J.G. CollinsMandrel and straightening press
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