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Patents Granted on 1831-04-14 | |||||
Number | Date | Patentee | Title | Type | |
6,476X | Apr. 14, 1831 | G. Eby | Jointing staves | cooper | |
6,478X | Apr. 14, 1831 | N.C. Munroe | Thrashing machine | threshers and thrashers | |
6,479X | Apr. 14, 1831 | P. Palmiter, Jr. | Water wheel for propelling boats | nautical propulsion apparatus |