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| Patents Granted on 1810-04-02 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,255X | Apr. 02, 1810 | R. Gillespie | Perpetual still and evaporator | ||
| 1,256X | Apr. 02, 1810 | J. Minor | Water wheels for mills | water wheels | |