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| Patents Granted on 1819-07-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,117X | Jul. 22, 1819 | G. Deming | Horizontal wheel | ||
| 3,118X | Jul. 22, 1819 | L. Hedge | Machine for dying morocco leather, etc. | leatherworker | |