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| All Patents in class 431/188 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,815,069 | Dec. 03, 1957 | G.H. Garraway | Burner Apparatus | stationary boilers | |
| 3,132,683 | May 12, 1964 | D. Meyer | Aspirator burner | industrial furnaces | |