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| Patents Granted on 1831-10-25 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,811X | Oct. 25, 1831 | W. Prescott | Thrashing machine | threshers and thrashers | |
| 6,812X | Oct. 25, 1831 | P. Reading | Cover seed machine | miller | |