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| All Patents in class 418/43 | |||||
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| Number | Date | Patentee | Title | Type | |
| 442,963 | Dec. 16, 1890 | J.H. Eichler | Rotary Gas Engine | rotary engines | |
| 655,093 | Jul. 31, 1900 | V.F. Lake | Rotary Motor | rotary steam engines | |
| 660,482 | Oct. 23, 1900 | F.G. Bates | Rotary Explosive-Engine | rotary engines | |
| 935,343 | Sep. 28, 1909 | G. Westinghouse | Rotary Engine | rotary steam engines | |
| 1,009,213 | Nov. 21, 1911 | B.F. Augustine | Rotary Engine | rotary steam engines | |
| 1,414,976 | May 02, 1922 | B.F. Augustine | Rotary Engine | rotary steam engines | |