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| All Patents in class 295/22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,801X | Nov. 19, 1833 | J. Elgar | Improvement in the wheels of rail road carriages | ||
| 369,752 | Sep. 13, 1887 | W.B. Swartwout | Car-wheel | railroad car wheels | |