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| All Patents in class 69/29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,492X | Apr. 19, 1831 | S.D. Ingham | Canal navigation by boats | canals | |
| 6,504X | Apr. 21, 1831 | R. McCormick | Art of teaching violin | ||
| 6,824X | Nov. 04, 1831 | A. Conwell | Tan yard | ||
| 8,329X | Jul. 28, 1834 | E.S. Bell, D. Bell | Tanning hides and skins by compression rollers | leatherworker | |
| 9,510X | Mar. 18, 1836 | H. Lochier | Tanning | ||
| 9,673X | May 23, 1836 | S. Heath | Tanning | ||
| 9,898X | Jul. 02, 1836 | S.T. Walker | Hydrant | hydrants | |