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| All Patents in class 418/11 | |||||
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| Number | Date | Patentee | Title | Type | |
| 501,223 | Jul. 11, 1893 | J.H. Eickershoff | Steam Engine | rotary steam engines | |
| 507,780 | Oct. 31, 1893 | A.F. Brown | Rotary Engine, Pump & Blower | rotary steam engines | |
| 647,015 | Apr. 10, 1900 | C.E. Miller | Rotary Steam Engine | rotary steam engines | |