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| Patents for Andrew Y. McDonald | |||||
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| Number | Date | Patentee | Title | Type | |
| 38,316 | Apr. 28, 1863 | A.Y. McDonald | Improvement in Screw-Wrenches | nut wrenches | |
| 47,067 | Mar. 28, 1865 | A.Y. McDonald | Improved Wrench | screw adjust wrenches | |