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| All Patents in class 92/137 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,895 | Dec. 31, 1842 | W. Douglas, B. Douglas | Pump | household hand pumps | |
| 275,800 | Apr. 17, 1883 | G. Clark | Steam-feed works for saw-mills | sawmill feed works | |
| 588,062 | Aug. 10, 1897 | H.C. Hart | Gas Engine | gas and gasoline engines | |
| 623,224 | Apr. 18, 1899 | E.j. Stoddard | Gas Motor Engine | gas and gasoline engines | |
| 1,364,823 | Jan. 04, 1921 | J.J. Aull | Gas Engine Primer | fuel primers | |