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| Patents Granted on 1817-03-29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,765X | Mar. 29, 1817 | N. Lewis | Small spinning wheels | spinner | |
| 2,766X | Mar. 29, 1817 | J. Rucco | Elexir of life | ||
| 2,767X | Mar. 29, 1817 | J. Olney | Machine for teazling cloth | ||