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| Patents Granted on 1833-02-13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,424X | Feb. 13, 1833 | B. Aylsworth | Softening, breaking, and stoning hides in lime | ||
| 7,425X | Feb. 13, 1833 | B. Morison | Balance platform | ||