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| Patents for K. H. Butter | |||||
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| Number | Date | Patentee | Title | Type | |
| 697,241 | Apr. 08, 1902 | F.V. Eurich | Wrench | quick adjust wrenches | |
| 885,003 | Apr. 14, 1908 | C.E. Hawkins | Improved Monkey Wrench | quick adjust wrenches | |