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| Patents Granted on 1807-12-__ | |||||
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| Number | Date | Patentee | Title | Type | |
| 809X | Dec. 01, 1807 | S. Williard, Jr. | Water wheel | water wheels | |
| 810X | Dec. 13, 1807 | W. Thornton | Stills | steam stills | |
| 811X | Dec. 15, 1807 | S. Rogers | Machine for heading nails | nail making machines | |
| 812X | Dec. 15, 1807 | J. Scripture | Churning machine | churns | |
| 813X | Dec. 24, 1807 | J.H. Pierson | Hoop and sheet iron | steel maker | |
| 814X | Dec. 24, 1807 | I. Pierson | Rolling and slitting mills | ||