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| Patents Granted on 1818-12-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,046X | Dec. 22, 1818 | A. Waters | Swing bucket water wheel | water wheels | |
| 3,047X | Dec. 22, 1818 | T. Ruffner | Sinking wells | ||
| 3,048X | Dec. 22, 1818 | J. Batchelder | Tanning hides and skins | ||