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| All Patents in class 123/53.6 | |||||
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| Number | Date | Patentee | Title | Type | |
| 195,585 | Sep. 25, 1877 | F. Dieckmann | Gas-Engines | gas and gasoline engines | |
| 497,239 | May 09, 1893 | W.W. Grant | Gas Engine | gas and gasoline engines | |
| 528,489 | Oct. 30, 1894 | J. Paterson | Gas Engine | gas and gasoline engines | |
| 553,352 | Jan. 21, 1896 | S.M. Miller | Gas Engine | gas and gasoline engines | |
| 619,776 | Feb. 21, 1899 | P. Murray | Gas Engine | gas and gasoline engines | |
| 824,396 | Jun. 26, 1906 | E.J. Woolf | Explosive Engine | internal combustion engines | |