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| Patents for William W. Hutchingson | |||||
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| Number | Date | Patentee | Title | Type | |
| 536,628 | Apr. 02, 1895 | W.W. Hutchingson | Wrench | wedge adjust wrenches | |
| GB-189,505,769 | May 09, 1895 | W.W. Hutchingson | Wrenches | wedge adjust wrenches | |