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| Patents Granted on 1823-09-29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,762X | Sep. 29, 1823 | A. Vansant | Water power by a spiral wheel | water wheels | |
| 3,763X | Sep. 29, 1823 | A. Vansant | Making salt, pot and pearl ash | ||