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| Patents for C. E. Johnson | |||||
| Number | Date | Patentee | Title | Type | |
| 536,063 | Mar. 19, 1895 | C.E. Billings | Wrench | quick adjust wrenches | |
| 981,598 | Jan. 10, 1911 | A.W. Sandelin | Combined Rule and Protractor | ||