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| All Patents in class 104/13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 785,135 | Mar. 21, 1905 | N.P. Walters | Ballast Handling Device | railroad track maintenance tools | |
| 2,016,326 | Oct. 08, 1935 | P.J. Gillen | Track Tool | railroad track maintenance tools | |
| 2,353,990 | Jul. 18, 1944 | T.A. Blair | Tamping Device | railroad track maintenance tools | |
| 2,447,216 | Aug. 17, 1948 | J.L. Tidwell | Track Tool | railroad track maintenance tools | |
| 2,704,036 | Mar. 15, 1955 | F.C. Briggs | Tamping Tool | railroad track maintenance tools | |