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Patents for George E. Putnam
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
190,447May 08, 1877J. PutnamScale Measurerule graduations
192,129Jun. 19, 1877S.W. PutnamImprovement in metal-working lathes
313,447Mar. 03, 1885S.W. PutnamLatheengine lathes
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