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| Patents for W. L. Cushman | |||||
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| Number | Date | Patentee | Title | Type | |
| 307,398 | Oct. 28, 1884 | L.F. Dieter, O.W. Kelly | Traction Engine | steam traction engines | |
| 310,443 | Jan. 06, 1885 | L.F. Dieter, O.W. Kelly | Traction Engine | traction engine suspensions | |