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| All Patents in class 172/297 | |||||
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| Number | Date | Patentee | Title | Type | |
| 101,395 | Mar. 29, 1870 | A.L. Taveau | American Steam Plow | steam plows | |
| 160,760 | Mar. 16, 1875 | J. Fogarty | Steam Plow | steam plows | |