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| Patents for Frank Hamilton | |||||
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| Number | Date | Patentee | Title | Type | |
| 89,019 | Apr. 20, 1869 | A.P. Brown | File Holder | file holders | |
| 196,893 | Nov. 06, 1877 | F. Hamilton | Improvement in hanging circular saws | circular saws | |
| 616,059 | Dec. 13, 1898 | F. Hamilton, J. Madlehner | Explosive Gas Engine | gas and gasoline engines | |