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| All Patents in class 123/559.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,213,682 | Sep. 03, 1940 | A.K. Antonsen | Power Plant and Engine Arrangement | power plants | |
| 2,232,305 | Feb. 18, 1941 | H.F. Bakewell | Internal combustion engine | gas and gasoline engines | |