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