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| Patents Granted on 1831-07-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,662X | Jul. 22, 1831 | L. Webster, B. Balch | Thrashing machine | threshers and thrashers | |
| 6,663X | Jul. 22, 1831 | M. Hurd | Machine for cutting dye wood | excelsior machines | |
| 6,664X | Jul. 22, 1831 | S. Underwood | Circular wedge | blacksmith | |