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| All Patents in class 123/41.63 | |||||
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| Number | Date | Patentee | Title | Type | |
| 651,216 | Jun. 05, 1900 | F.W. Toedt | Gas Engine | gas and gasoline engines | |
| 720,995 | Feb. 17, 1903 | C.A. Bailey | Cooling Device for Explosive Engines | cooling apparatus | |