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| All Patents in class 60/786 | |||||
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| Number | Date | Patentee | Title | Type | |
| 574,311 | Dec. 29, 1896 | J.W. Eisenhuth | Expansion Gas Engine | gas and gasoline engines | |
| 693,872 | Feb. 25, 1902 | F.M. Leavitt | Propulsion of torpedoes, &c., by compressed air | torpedoes | |