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| All Patents in class 418/5 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 144,722 | Nov. 18, 1873 | P. Worrall | Rotary-Engines | ||
| 454,738 | Jun. 23, 1891 | E.F. Holmgreen | Rotary Engine | ||
| 864,979 | Sep. 03, 1907 | J.A. Mosher | Rotary Engine | ||
 | 1,263,639 | Apr. 23, 1918 | G.A. Bertsch | Reversible Rotary Motor | |