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| All Patents in class 261/154 | |||||
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| Number | Date | Patentee | Title | Type | |
| 350,769 | Oct. 12, 1886 | G. Smyers, G. Rogot | Petroleum and Gas Motor | gas and gasoline engines | |
| 660,954 | Oct. 30, 1900 | A. Hayes | Fuel Vaporizer and Mixer for Explosive-Engines or Other Uses | carburetors | |