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| Patents for Leonard Wilkinson | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-2,460 | Jun. 14, 1873 | L. Wilkinson | Wilkinson's Monkey Wrench | quick adjust wrenches | |
| CA-20,020 | Aug. 18, 1884 | L. Wilkinson, F.B. Wilkinson | Wilkinson's Monkey-wrench | quick adjust wrenches | |