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| Patents for Stephen T. Conn | |||||
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| Picture | Number | Date | Patentee | Title | |
| 3,947X | Sep. 27, 1824 | S.T. Conn | Mode of generating and applying steam | ||
| 4,277X | Nov. 29, 1825 | S.T. Conn | Mode of generating and applying steam | ||
| 4,495X | Jul. 12, 1826 | S.T. Conn | Mode of manufacturing salt by steam | ||
| 4,499X | Jul. 20, 1826 | S.T. Conn | Improvement on steam generator patented Nov 18 1825 | ||
| 5,489X | May 11, 1829 | S.T. Conn | Cotton Gin | ||