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| Patents Granted on 1815-05-16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,310X | May 16, 1815 | L. Gale | Bark mills | bark processing machines | |
| 2,311X | May 16, 1815 | A. Danielson | Water used on wheels successively | ||
| 2,312X | May 16, 1815 | A. Danielson | Fulling mill | miller | |
| 2,313X | May 16, 1815 | J. Brownell | Auger | auger bits | |