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| Patents Granted on 1825-11-12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,260X | Nov. 12, 1825 | F. Hoard, J.R. Averill | Rotary steam engine | rotary steam engines | |
| 4,261X | Nov. 12, 1825 | A. Williams, S. Williams | Tanning | ||