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| Patents for E. E. Johansen | |||||
| Number | Date | Patentee | Title | Type | |
| 956,116 | Apr. 26, 1910 | F. Lohman | Butt and Lock Mortise Gage | center marking gauges | |
| 985,028 | Feb. 21, 1911 | E. Green | Wrench | quick adjust wrenches | |