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Patents for D. B. Treadwell
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
276,639May 01, 1883W.S. Doig, T.L. SmithFeeder for nailing-machinesnailing machines
342,268May 18, 1886W.S. Doig, T.L. SmithBox-nailing machinenailing machines
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