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| Patents for George S. Derr | |||||
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| Number | Date | Patentee | Title | Type | |
| 184,065 | Nov. 07, 1876 | G.S. Derr | Wood-Boring Machine | portable timber borers | |
| 214,494 | Apr. 22, 1879 | G.S. Derr | Improvement in bench-knives | work holding | |