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| Patents Granted on 1831-08-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| FX-6,715 | Aug. 30, 1831 | J. Stimpson | Turning Short Curves | track and switches | |
| 6,738X | Aug. 30, 1831 | J. Barber | Washing machine | washing machines | |
| 6,739X | Aug. 30, 1831 | J. Barron | Filtrating water and other liquids | ||