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| All Patents in class 180/194 | |||||
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| Number | Date | Patentee | Title | Type | |
| 202,429 | Apr. 16, 1878 | M. Fortin | Traction Engine | steam traction engines | |
| 342,596 | May 25, 1886 | G.T. Glover | Traction Engine | traction engine propulsion components | |
| 400,058 | Mar. 26, 1889 | J.F. Conniff | Steam Sled | steam traction engines | |