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| Patents Granted on 1830-03-22 | |||||
| Number | Date | Patentee | Title | Type | |
| 5,881X | Mar. 22, 1830 | P. Brewer, J. Sowle | Churn | churns | |
| 5,882X | Mar. 22, 1830 | A. Stearns, Jr. | Machine for heading and dressing staves | cooper | |