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| Patents Granted on 1817-12-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,885X | Dec. 31, 1817 | G.F. Saltonstall | Cotton hopper for cleaning cotton | conveyors and hoppers | |
| 2,886X | Dec. 31, 1817 | M. Hall | Machine for finishing and dying morocco etc. | ||
| 2,887X | Dec. 31, 1817 | M. Otis | Machine for cutting and heading nails | nail making machines | |
| 2,888X | Dec. 31, 1817 | J. Hall, A. Hall | Removing spots from silken and woollen goods | ||