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| Patents for Alfred E. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 458,581 | Sep. 01, 1891 | A.E. Johnson | Drill-press | drill presses | |
| 1,466,881 | Sep. 04, 1923 | A.E. Johnson | Crank Shaft Turning Device | portable turning tools | |