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Patents for Frederic E. Frey
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
134,425Dec. 31, 1872F.E. FreyFlexible Saw Filing Apparatussaw sharpening machines
252,451Jan. 17, 1882F.E. FreySaw-mill dogsawmill dogs
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