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| Patents Granted on 1803-05-25 | |||||
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| Number | Date | Patentee | Title | Type | |
| 456X | May 25, 1803 | J.W. Godfrey | Working bellows for a furnace or forge | blacksmith | |
| 457X | May 25, 1803 | T. Alden, Jr. | Expediting the manufacture of common salt | manufacturing salt | |