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| All Patents in class 431/240 | |||||
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| Number | Date | Patentee | Title | Type | |
| AI294 | Aug. 14, 1860 | A. Geiger | Vapor lamp | ||
| 933,822 | Sep. 14, 1909 | W. Chaussé | Vapor Burner | torches | |
| 933,823 | Sep. 14, 1909 | W. Chaussé | Vapor Burner | torches | |