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| Patents for Charles C. Clark | |||||
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| Number | Date | Patentee | Title | Type | |
| 644,589 | Mar. 06, 1900 | F.W. Förster | Foot Power Hammer | drop hammers | |
| 1,151,127 | Aug. 24, 1915 | C.H. Schroder | Boiler-furnace | stationary boilers | |