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| All Patents in class 40/522 | |||||
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| Number | Date | Patentee | Title | Type | |
| 225,560 | Mar. 16, 1880 | A.J. Hoag, E.D. Brown | Traction Engine | steam traction engines | |
| 360,150 | Mar. 29, 1887 | W.H. Gray | Gearing for wood-planer feeds | woodworking machine stockfeeding mechanisms | |