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| Patents for Stephen T. Conn | |||||
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| Number | Title | Classification(s) | |||
| 3,947X | Mode of generating and applying steam | ||||
| 4,277X | Mode of generating and applying steam | ||||
| 4,495X | Mode of manufacturing salt by steam | ||||
| 4,499X | Improvement on steam generator patented Nov 18 1825 | ||||
| 5,489X | Cotton Gin | ||||