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Patents for F. H. Ayer Mfg. Co.
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
890,841Jun. 16, 1908W.E. CanedyVise
1,072,807Sep. 09, 1913F.H. AyerRatchet Driving Mechanism
1,199,737Sep. 26, 1916F.H. AyerRatchet Mechanism
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