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Patents for Frederick H. Ayer
Patents 1 - 3 of 3
Number	Title	Classification(s)
1,072,807	Ratchet Driving Mechanism	192/43.1, 74/577R, 81/63
1,199,737	Ratchet Mechanism	192/43.1, 81/177.5, 81/177.85, 81/63
1,199,738	Reversible Clutch Mechanism	192/43.1

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