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Patents for E. B. Rich & Son
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
409,337Aug. 20, 1889E.B. RichMachine for grinding knives and sawssharpening machines
438,861Oct. 21, 1890E.B. RichSaw-swaging machinesaw sharpening machines
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