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Patents Granted on 1829-04-06 | |||||
Number | Date | Patentee | Title | Type | |
5,436X | Apr. 06, 1829 | J.L. Sullivan | Railroad Carriages | railroad cars and carriages | |
5,437X | Apr. 06, 1829 | J. Woodhull | Double Rack and Twin Wheels Applied to Steam Engines | steam engines |