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| Patents Granted on 1827-02-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,686X | Feb. 28, 1827 | I. White, L. Gale | Mode of pressing paper | ||
| 4,687X | Feb. 28, 1827 | J.G. Wilson | Tailor's Square | squares | |
| 4,688X | Feb. 28, 1827 | B. Overman | Grist mill | grist mills | |