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Patents for Henry K. Porter
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
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
226,190Apr. 06, 1880H.K. PorterBolt-cutterbolt cutters
236,695Jan. 18, 1881H.K. PorterBolt-cutter
484,670Oct. 18, 1892H.K. PorterBolt-clipperbolt cutters
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