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| Patents Granted on 1804-04-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| 547X | Apr. 30, 1804 | M. Withers | Clover Huller | clover hullers | |
| 548X | Apr. 30, 1804 | M. Coates, E. Evans | Machine for cutting straw and hay | hay or straw cutters | |