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| Patents for J. Vance Powers | |||||
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| Number | Date | Patentee | Title | Type | |
| 74,521 | Feb. 18, 1868 | J.E. Emerson | Improvement in saws | saw teeth | |
| 74,523 | Feb. 18, 1868 | W.S. Winsor, J.E. Emerson | Improvement in saws | saw teeth | |