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| Patents for Charles L. Mitchell | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,075,485 | Jan. 29, 1963 | C.L. Mitchell | Mounting Construction for Diaphragm in Forming Press | hydraulic metalworking presses | |
| 3,115,858 | Dec. 31, 1963 | C.L. Mitchell | Hydraulic Press | hydraulic metalworking presses | |
| 3,357,218 | Dec. 12, 1967 | C.L. Mitchell | Hydraulic Press | hydraulic metalworking presses | |