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| All Patents in class 123/41.79 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 343,744 | Jun. 15, 1886 | S. Wilcox | Gas Engine | ||
| 386,949 | Jul. 31, 1888 | H. Williams | Gas Motor Engine | ||
| 390,710 | Oct. 09, 1888 | H.K. Shanck | Gas Engine | ||
| 403,379 | May 14, 1889 | J.A. Wharry, N. Rogers | Gas Engine | ||
| 580,387 | Apr. 13, 1897 | J.F. Steward, G.H. Ellis | Explosive Engine | ||
| 709,060 | Sep. 16, 1902 | H.C. Sträng | Four Cycle Explosive Engine | ||
| 3,534,715 | Oct. 20, 1970 | A.K. Antonsen | Opposed Piston Engine Having Improved Cylinder Liner Cooling | ||