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| All Patents in class 246/370 | |||||
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| Number | Date | Patentee | Title | Type | |
| 75,741 | Mar. 24, 1868 | J.A. Kaufman, G.L. Du Laney | Improvement in railroad-switches | track and switches | |
| 522,096 | Jun. 26, 1894 | C.P. Bachelder | Automatic switch-operating mechanism | ||