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Patents for Henry K. Porter
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
72,327Dec. 17, 1867H.K. Porter, T.W. PorterImprovement in visesbench vises
103,925Jun. 07, 1870H.K. PorterImprovement in saw-setsaw sets
103,926Jun. 07, 1870H.K. PorterImprovement in caliperscalipers
104,995Jul. 05, 1870H.K. PorterLathe Centermetal lathe accessories and attachments
RE5,653Nov. 11, 1873H.K. Porter, T.W. PorterImprovement in visesbench vises
226,190Apr. 06, 1880H.K. PorterBolt-cutterbolt cutters
236,695Jan. 18, 1881H.K. PorterBolt-cutterbolt cutters
484,670Oct. 18, 1892H.K. PorterBolt-clipperbolt cutters
909,663Jan. 12, 1909H.K. PorterBolt Clipperbolt and rivet cutters
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