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| All Patents in class 280/474 | |||||
| Number | Date | Patentee | Title | Type | |
| 1,083,777 | Jan. 06, 1914 | M.J. Todd | Train of Wheeled Vehicles | wagon and cart couplings | |
| 1,103,452 | Jul. 14, 1914 | M.J. Todd | Coupling Lock for Wheeled Vehicles | wagon and cart couplings | |