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| Patents for Charles J. Leach | |||||
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| Number | Date | Patentee | Title | Type | |
| 199,213 | Jan. 15, 1878 | C.J. Leach | Improvement in saw-mill dogs | sawmill dogs | |
| 292,924 | Feb. 05, 1884 | A. Olds, C.J. Leach | Traction Engine | steam traction engines | |