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| All Patents in class 60/618 | |||||
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| Number | Date | Patentee | Title | Type | |
| 276,748 | May 01, 1883 | C.W. Baldwin | Gas Engine | gas and gasoline engines | |
| 647,651 | Apr. 17, 1900 | W.R. Dow | Gas Engine | gas and gasoline engines | |