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| Patents Granted on 1831-01-08 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,324X | Jan. 08, 1831 | S. Sturdevant | Type Rubber or Machine for Smoothing the Bodies of Types | printer | |
| 6,325X | Jan. 08, 1831 | I. Loomis, N. Cushman | Boats, transporting passengers | boats and ships | |
| 6,326X | Jan. 08, 1831 | I. Loomis, N. Cushman | Cotton gin frame | cotton gins | |