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| Patents for F. Hunnewell | |||||
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| Number | Date | Patentee | Title | Type | |
| 77,155 | Apr. 21, 1868 | J. Wool | Drop Hammer | drop hammers | |
| 189,921 | Apr. 24, 1877 | J. Chase | Improvement in pruning implements | pruning implements | |
| 216,624 | Jun. 17, 1879 | B. Noyes, M.C. Mayo | Improvement in devices for suspending swings, &c. | ||