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| All Patents in class 110/269 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,173,307 | Feb. 29, 1916 | E.C. Clark, W.P. Reiboldt | Chain-grate stoker | |
 | 2,053,915 | Sep. 08, 1936 | C.L. Mattison | Feeding mechanism or the like | |