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| All Patents in class 123/41.86 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,229,569 | Jun. 12, 1917 | B.F. Augustine | Rotary Engine | rotary engines | |
| 1,306,496 | Jun. 10, 1919 | P. Mohrdieck | Internal-combustion engine | gas and gasoline engines | |
| 1,862,155 | Jun. 07, 1932 | C. Gross, C.G. Mahana | Engine Fuel and Oil Control Means | fuel tanks | |
| 2,861,555 | Nov. 25, 1958 | M.L. Foreman, A.K. Antonsen | Internal Combustion Engine | internal combustion engines | |