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| Patents Granted on 1827-09-18 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,879X | Sep. 18, 1827 | J.J. Giraud | Propelling water paddle wheel | ||
| 4,880X | Sep. 18, 1827 | O. Cogswell | Mode of tanning leather | leatherworker | |