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| Patents for Graham E. Marx | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,369,361 | Feb. 13, 1945 | G.E. Marx | Tool Structure for Two-Way Planing | metal planer tool holders | |
| 2,940,368 | Jun. 14, 1960 | G.E. Marx, J.M. Walter | Machine Tool | metal planers | |
| 3,040,632 | Jun. 26, 1962 | G.E. Marx, J.M. Walter | Double Action Cutting Tool | metal planer tool holders | |