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| Patents Granted on 1831-09-29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,777X | Sep. 29, 1831 | J. Cole, S. Miller | Manufacturing barrels | cooper | |
| 6,778X | Sep. 29, 1831 | J.M. Truman | Coating tin plate with lead | ||