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| Patents Granted on 1819-01-09 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,057X | Jan. 09, 1819 | W.B. Leonard | Spindle and bobbin for spinning cotton | spinner | |
| 3,058X | Jan. 09, 1819 | W.B. Leonard | Machine for making cordage | rope maker | |