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| Patents Granted on 1830-01-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,797X | Jan. 28, 1830 | J. Barber | Cradle churn | churns | |
| 5,798X | Jan. 28, 1830 | C. Clarke | Thrashing and hulling clover seed | threshers and thrashers | |
| 5,799X | Jan. 28, 1830 | J. Leonard, Jr., J.L. Brainard, A. Sizer | Moulds for casting iron, brass, etc. | patternmaker | |