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Patents for George Robinson
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
57,588Aug. 28, 1866P. SoperImprovement in Caliperscalipers
90,125May 18, 1869H.O. Silver, G. RobinsonImprovement in saw-filing machinesaw sharpening machines
127,270May 28, 1872G. RobinsonImprovement in electrical wood-dividerssawblades
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