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| Patents Granted on 1804-05-10 | |||||
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| Number | Date | Patentee | Title | Type | |
| 554X | May 10, 1804 | J.D. Staniford, Jr., A.D. Allen | Improvement of the Lantern | lanterns | |
| 555X | May 10, 1804 | A.D. Allen | Varnish for writing tablets | ||
| 556X | May 10, 1804 | A.D. Allen | Plane for Making Bonnets | splint planes | |