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| Patents Granted on 1824-02-11 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,815X | Feb. 11, 1824 | S. Lewis | Machine for making bricks | brick maker | |
| 3,816X | Feb. 11, 1824 | H.H. Hayden | Preventive for the decay of human teeth | ||