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| Patents Granted on 1831-02-09 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,369X | Feb. 09, 1831 | W.E. Marshall, R. Bacon | Double oven in chimneys | household tools | |
| 6,370X | Feb. 09, 1831 | P. Meigs | Securing Irons in Planes | plane lever caps | |