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| All Patents in class 431/163 | |||||
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| Number | Date | Patentee | Title | Type | |
| 178,477 | Jun. 06, 1876 | A. Smith | Improvement in hydrocarbon-furnaces | industrial furnaces | |
| 617,785 | Jan. 17, 1899 | W.L. Teter | Apparatus for Generating and Utilizing Gaseous Fuel | gas generators | |