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| All Patents in class 123/47A | |||||
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| Number | Date | Patentee | Title | Type | |
| 563,670 | Jul. 07, 1896 | F.S. Mead | Gas, Oil or Vapor Engine | gas and gasoline engines | |
| 569,564 | Oct. 13, 1896 | F.C. Olin | Gas Engine | internal combustion engines | |
| 581,412 | Apr. 27, 1897 | E. Captaine | Vaporizer and Combustion Chamber for Petroleum Motors | internal combustion engines | |
| 810,495 | Jan. 23, 1906 | W.G. Miller | Gas Engine | internal combustion engines | |