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Patents for Arthur J. Frith
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
411,884Oct. 01, 1889A.J. Frith, H.L. BinsseSlotting Machinemetal slotting machines
672,477Apr. 23, 1901J.D. Macpherson, A.J. FrithOil Pump for Explosive Enginesdiesel engines
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