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| All Patents in class 123/41.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 544,586 | Aug. 13, 1895 | F.S. Mead | Gas or Oil Engine | gas and gasoline engines | |
| 1,791,572 | Feb. 10, 1931 | I. Ornberg | Cooling System for Internal Combustion Engines | engine thermostats | |
| 2,326,096 | Aug. 03, 1943 | E.J. Dillman | Thermostatic Control Device | thermostats | |