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| All Patents in class 123/575 | |||||
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| Number | Date | Patentee | Title | Type | |
| 690,610 | Jan. 07, 1902 | A.D. Richardson | Hydrocarbon Engine | internal combustion engines | |
| 1,293,756 | Feb. 11, 1919 | W.W. Gore | Fuel Feed Device for Engines | fuel systems | |
| 1,303,703 | May 13, 1919 | H. Manthey | Charge Forming Device for Internal Combustion Engine | carburetors | |
| 2,518,291 | Aug. 08, 1950 | H. Davids | Engine Fuel Control | opposed piston engines | |
| 2,753,165 | Jul. 03, 1956 | H.F. Budzien | Engine Fuel System | fuel systems | |