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| Patents Granted on 1830-07-13 | |||||
| Number | Date | Patentee | Title | Type | |
| 6,077X | Jul. 13, 1830 | E. Bowen | Spinning machine called the double spinner | spinner | |
| 6,078X | Jul. 13, 1830 | E. Dunscomb | Rail roads | ||
| 6,079X | Jul. 13, 1830 | J. Stowitts | Thrashing machine | threshers and thrashers | |