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| Patents for D. N. B. Coffin Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 18,321 | Oct. 06, 1857 | H. Carsley | Stove-cover stand | stoves | |
| 27,081 | Feb. 07, 1860 | E.H. Stearns | Method of rossing saw-logs | debarking machines | |
| 65,097 | May 28, 1867 | J.H. Lewis | Improved vise | bench vises | |
| 74,750 | Feb. 25, 1868 | S.E. Chubbuck, I.Y. Chubbuck | Improvement in pistons | steam engine pistons | |