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| Patents for Wm. J. Hutchins | |||||
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| Number | Date | Patentee | Title | Type | |
| 391,588 | Oct. 23, 1888 | C.S. De Witt | Wrench | screw adjust wrenches | |
| 517,393 | Mar. 27, 1894 | H.A. Post | Combination Wrench | pipe and nut combination wrenches | |