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| Patents for Warren Hull | |||||
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| Number | Date | Patentee | Title | Type | |
| 408,193 | Jul. 30, 1889 | C.T. Ridgely | Rolling Cutter | knives and cutters | |
| 416,649 | Dec. 03, 1889 | C. Sintz | Gas Engine | gas and gasoline engines | |
| 451,283 | Apr. 28, 1891 | G.L. Webb | Wrench | screw adjust wrenches | |
| 661,874 | Nov. 13, 1900 | W. Hull | Double Cylinder Pump | hand pumps | |