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| Patents for Frederick H. Ayer | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,072,807 | Sep. 09, 1913 | F.H. Ayer | Ratchet Driving Mechanism | ratchet wrenches | |
| 1,199,737 | Sep. 26, 1916 | F.H. Ayer | Ratchet Mechanism | ratchet wrenches | |
| 1,199,738 | Sep. 26, 1916 | F.H. Ayer | Reversible Clutch Mechanism | ratchet wrenches | |