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| Patents Granted on 1791-03-11 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7X | Mar. 11, 1791 | S. Mullikin | Machine for thrashing grain and corn | miller | |
| 8X | Mar. 11, 1791 | S. Mullikin | Breaking and Swingling of Hemp, etc. | spinner | |
| 9X | Mar. 11, 1791 | S. Mullikin | Machine for cutting and polishing stone and marble | stone boring and drilling machines | |
| 10X | Mar. 11, 1791 | S. Mulliken | Machine for raising a nap on cloths | cloth napping machines | |