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Patents for Francis C. Sanford
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberTitleClassification(s)
1,483,748Grinding Machine125/11.21, 451/209, 451/231, 451/242
1,611,135Grinding Machine451/182, 451/190, 451/209, 451/244
1,611,136Centerless Grinding Machine for Tapering Drills and the Like451/182, 451/190, 451/199, 451/244
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