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| Patents for Emil M. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,245,676 | Jun. 17, 1941 | E.M. Johnson | Tool attachment | tool and die maker | |
| 3,063,319 | Nov. 13, 1962 | E.M. Johnson | Machine punch having ejector pin retaining means | tool and die maker | |