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| Patents Granted on 1810-04-04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,257X | Apr. 04, 1810 | M. Battle | Wheel wright's labor saving machine | wheelwright | |
| 1,258X | Apr. 04, 1810 | J. Ramsey | Earthen or clay tubes for aqueducts | ||