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| Patents Granted on 1817-10-13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,859X | Oct. 13, 1817 | G.F. Hagner | Improvement in manufacturing verdegris | ||
| 2,860X | Oct. 13, 1817 | G.F. Hagner | Improvement in manufacturing white lead | manufacturing potash | |
| 2,861X | Oct. 13, 1817 | I.J. Richardson | Steam engine | steam engines | |