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Patents for Fred R. Allen
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,000,878Aug. 15, 1911F.R. AllenWrenchratchet wrenches
1,261,092Apr. 02, 1918F.R. AllenWrenchratchet wrenches
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