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Patents for R. C. Wrenshall
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
98,711Jan. 11, 1870L. RogersHorse Hay Forkhay or straw forks
106,349Aug. 16, 1870G.M. EvansWoodworker's Leg Viseleg vises
116,655Jul. 04, 1871G. Westinghouse, Jr.Improvement in valve devices for steam-power air-brake couplingsrailroad car brakes
RE7,673May 08, 1877J. OldPipe-Couplingauxiliary wrenches
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