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| Patents for Frederick L. Hall | |||||
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| Number | Date | Patentee | Title | Type | |
| 135,508 | Feb. 04, 1873 | J. Barsaloux, G.A. Prescott | Improvement in slab and siding holders for saw-mills | sawmill accessories | |
| 136,093 | Feb. 18, 1873 | J. Barsaloux, G.A. Prescott | Improvement in spike-extractors | nail extractors | |