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| Patents for E. C. Skinkle | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,128,135 | Feb. 09, 1915 | G.H. Hammond | Valve Pick-Up Tool | ||
| 1,170,761 | Feb. 08, 1916 | J.J. Kovar | Spring-Toothed Harrow | harrows | |