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| All Patents in class 418/63 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 75,811 | Mar. 24, 1868 | J.A. Talpey | Improvement in rotary pumps | |
| 660,482 | Oct. 23, 1900 | F.G. Bates | Rotary Explosive-Engine | ||