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| All Patents in class 180/254 | |||||
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| Number | Date | Patentee | Title | Type | |
| 402,322 | Apr. 30, 1889 | A. Hasbrouck | Driving Gear for Locomotives | steam road engines | |
| 620,030 | Feb. 21, 1899 | J.M. Hamilton | Traction Engine | steam traction engines | |
| 620,439 | Feb. 28, 1899 | L.M. Gautier | Mechanical Movement | metalworking variable speed mechanisms | |