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| Patents for Alonzo L. Smith | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,259X | Nov. 24, 1830 | A.L. Smith | thrashing machine | threshers and thrashers | |
| 6,523X | Apr. 27, 1831 | A.L. Smith | Thrashing machine shelling corn | threshers and thrashers | |
| 6,605X | Jun. 13, 1831 | A.L. Smith | Soda water apparatus | ||