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| Patents Granted on 1831-12-12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,860X | Dec. 12, 1831 | L. Hale | Toggle press joint screw | cotton presses | |
| 6,861X | Dec. 12, 1831 | A. Matthews | Clover seed machine | miller | |