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| All Patents in class 305/123 | |||||
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| Number | Date | Patentee | Title | Type | |
| 282,197 | Jul. 31, 1883 | N. Jackson | Traction Engine | steam traction engines | |
| 866,647 | Sep. 24, 1907 | J.B. Hill | Traction-Apron | traction engine tracks | |