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| All Patents in class 123/198DB | |||||
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| Picture | Number | Date | Patentee | Title | |
| 302,271 | Jul. 22, 1884 | H.S. Maxim | Gas Motor | ||
| 595,324 | Dec. 14, 1897 | E.F. Lloyd, C.K. McFadden | Fuel Engine | ||
| 2,225,234 | Dec. 17, 1940 | W.W. Schettler | Thermal Control of Internal Combustion Engines | ||
| 2,518,400 | Aug. 08, 1950 | L.D. Thompson | Safety Means for Internal Combustion Engines | ||
| 2,566,083 | Aug. 28, 1951 | J.E. Justus, L.E. Endsley | Control Device for Engine Fuel Systems | ||