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| Patents for George Washington Martin | |||||
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| Number | Date | Patentee | Title | Type | |
| 489,822 | Jan. 10, 1893 | G.W. Martin | Wrench | quick adjust wrenches | |
| 577,770 | Feb. 23, 1897 | G.W. Martin | Wrench | pipe and nut combination wrenches | |