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| Patents for Harvey F. Gaskill | |||||
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| Picture | Number | Date | Patentee | Title | |
| 229,881 | Jul. 13, 1880 | H.F. Gaskill | Pump Valve | ||
| 233,231 | Oct. 12, 1880 | J.G. Benton, H.F. Gaskill | Oil Pump | ||
| 262,286 | Aug. 08, 1882 | H.F. Gaskill | Vertical Pumping Engine | ||
| 262,944 | Aug. 22, 1882 | H.F. Gaskill | Cut-Off Valve Gear | ||
| 263,694 | Sep. 05, 1882 | H.F. Gaskill | Pumping engine | ||