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| Patents for Edward C. Clark | |||||
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| Number | Date | Patentee | Title | Type | |
| 592,278 | Oct. 26, 1897 | E.C. Clark | Hammer | hammers | |
| 972,751 | Oct. 11, 1910 | E.C. Clark | Chain grate | solid fuel stokers | |
| 1,173,307 | Feb. 29, 1916 | E.C. Clark, W.P. Reiboldt | Chain-grate stoker | solid fuel stokers | |