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Patents for J. J. Walworth & Co.
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
22,157Nov. 30, 1858J.R. BrownPipe-Tongspipe tongs
42,560May 03, 1864J.C. ChapmanRatchet Drillratchet drills
95,744Oct. 12, 1869D.C. StillsonImprovement in Pipe-Wrenchespipe wrenches
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