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| All Patents in class 123/74AP | |||||
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| Number | Date | Patentee | Title | Type | |
| 289,019 | Nov. 27, 1883 | L.H. Nash | Gas Engine | gas and gasoline engines | |
| 289,691 | Dec. 04, 1883 | L.H. Nash | Gas Engine | gas and gasoline engines | |
| 289,692 | Dec. 04, 1883 | L.H. Nash | Gas Engine | gas and gasoline engines | |
| 625,387 | May 23, 1899 | F. Dürr | Valveless two-Cycle Hydrocarbon Engine | gas and gasoline engines | |