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| All Patents in class 123/48R | |||||
| Number | Date | Patentee | Title | Type | |
| 466,331 | Jan. 05, 1892 | H.T. Dawson | Gas Engine | gas and gasoline engines | |
| 501,881 | Jul. 18, 1893 | C. Gaume, Administratrix, C.J. Gaume, deceased (Estate of) | Gas Engine | gas and gasoline engines | |