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Patents for Philadelphia Tool Co.
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
94,085Aug. 24, 1869A.B. DavisImprovement in Duplex Wrenchpipe and nut combination wrenches
97,988Dec. 14, 1869G.C. TaftImprovement in Wrenchesscrew adjust wrenches
106,129Aug. 09, 1870A.B. DavisNut-Wrenchpipe and nut combination wrenches
120,947Nov. 14, 1871A.B. DavisImprovement in Duplex Wrencheswrench jaw components
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