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Patents for T. W. Porter
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
30,009Sep. 11, 1860J.W. StrangeSpring Dividerscalipers
104,995Jul. 05, 1870H.K. PorterLathe Centermetal lathe accessories and attachments
271,595Feb. 06, 1883S.A. BostwickPipe Wrenchpipe wrenches
324,378Aug. 18, 1885J.T. HaydenPipe Wrenchchain and strap wrenches
326,342Sep. 15, 1885J.C. SmithAdjustable Concentric Channeleradjustable drill bits
331,812Dec. 08, 1885J. NorrisCushioned Nippers and Pliers For Glass Cutters' Usepliers
391,488Oct. 23, 1888E. SmithSurface Gagesurface gauges
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