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| All Patents in class 104/2 | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,567X | Mar. 31, 1836 | A.M. McCaine | Rail plate | ||
| 1,893,719 | Jan. 10, 1933 | H.H. Talboys | Spike Puller | track maintenance machinery | |
| 2,447,216 | Aug. 17, 1948 | J.L. Tidwell | Track Tool | railroad track maintenance tools | |