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| All Patents in class 280/28.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| 103,102 | May 17, 1870 | S.S. Stuntz | Improved Traction Machine for Plows | steam traction engines | |
| 219,938 | Sep. 23, 1879 | J.J. Holcombe | Endless-Track Vehicles | tracks | |