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Patents for Jos. Geo. Mason
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
13,127Jun. 26, 1855C.J. Ackerman, J.S. HalsteadTry Square and Bevelsquares
14,396Mar. 11, 1856R. EickemeyerImprovement in Parallel Rulersrules
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