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| All Patents in class 74/607 | |||||
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| Number | Date | Patentee | Title | Type | |
| 602,310 | Apr. 12, 1898 | B.J. Diplock | Locomotive | steam road engines | |
| 620,030 | Feb. 21, 1899 | J.M. Hamilton | Traction Engine | steam traction engines | |
| 697,629 | Apr. 15, 1902 | H.B. Keiper | Combined gearing and casing therefor | forge blowers | |