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Patents for H. W. Hoyt
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
525,443Sep. 04, 1894P.W. Gates, E.E. Hanna, C.L. CarmanGyrating crusherore processing apparatus
1,400,282Dec. 13, 1921P.W. GatesMolding-machineore processing apparatus
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