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Patents Granted on 1830-04-15 | |||||
Number | Date | Patentee | Title | Type | |
5,918X | Apr. 15, 1830 | T.B. Armistead | Aqueduct pipes | pipes | |
5,919X | Apr. 15, 1830 | B.N. Fyler | Grinding grain, hulling cotton seed, rubbing down whet stones, etc. | miller |