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| Patents for George P. Ganster | |||||
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| Number | Date | Patentee | Title | Type | |
| 54,888 | May 22, 1866 | G.P. Ganster | Improvement in Wrenches | screw adjust wrenches | |
| 88,623 | Apr. 06, 1869 | G.P. Ganster | Improvement in Wrench | screw adjust wrenches | |