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| All Patents in class 48/189.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| 351,393 | Oct. 26, 1886 | P. Murray, Jr. | Gas Engine | gas and gasoline engines | |
| 574,183 | Dec. 29, 1896 | F.M. Underwood | Mixer for Gas Engines | carburetors | |
| 680,961 | Aug. 20, 1901 | H.H. Buffum | Carbureter for Explosive Engines | carburetors | |