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| Patents Granted on 1812-12-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,855X | Dec. 30, 1812 | W. Edwards | Hide mill or machine for softening dry hides | leatherworker | |
| 1,856X | Dec. 30, 1812 | W. Edwards | Mill for softening hide, etc. | ||
| 1,857X | Dec. 30, 1812 | J. Achman | Fire engine | fire engines | |
| 1,858X | Dec. 30, 1812 | E. Denison | Washing machine | washing machines | |