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Patents for William Sawyer
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
227,845May 18, 1880W. SawyerDynamo Electric MachineDC motors
368,480Aug. 16, 1887H.N. MacomberWire Twisting Devicewrenches
618,238Jan. 24, 1899S.F. SawyerAuger-Handleauger handles
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