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| Patents Granted on 1830-03-02 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,856X | Mar. 02, 1830 | J. Bogardus | Clock | clockmaker | |
| 5,857X | Mar. 02, 1830 | W.P. Orrick | Rail road carriage | coaches and carriages | |
| 5,858X | Mar. 02, 1830 | D. Toms | Machine for sawing staves | cooper | |