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| All Patents in class 123/552 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,470,756 | Oct. 16, 1923 | J.G. Lanning | Fuelizer | ||
| 1,846,008 | Feb. 16, 1932 | W.H. Weber | Carbureting Apparatus | ||
| 2,225,234 | Dec. 17, 1940 | W.W. Schettler | Thermal Control of Internal Combustion Engines | ||