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| All Patents in class 57/315 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 6,794X | Oct. 11, 1831 | D. Treadwell | Spinning hemp and flax | ||
| 6,901X | Jan. 16, 1832 | S. Simmons | Throstle frame for spinning cotton | ||
| 7,322X | Dec. 08, 1832 | J.A. Bradshaw | Roving cotton | ||
| 7,373X | Jan. 18, 1833 | J.A. Bradshaw | Spinning cotton, yarn, and thread | ||