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Patents for Frank Elias Watkins
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-179,114Sep. 04, 1917F.E. WatkinsMetal lathe chuckmetal lathe chucks
CA-187,041Oct. 15, 1918F.E. WatkinsMachine tool feed controlmetalworking machine mechanisms
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