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Patents for William B. W. Hallett
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
74,490Feb. 18, 1868J.A. BidwellScrewdriver and Countersinkscrewdriver blades
203,262May 07, 1878G.S. GoodspeedWrenchratchet wrenches
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