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| Patents for Sutemaru Mizoguchi | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,730,636 | May 01, 1973 | S. Mizoguchi | Boring Head | boring heads | |
| 3,782,849 | Jan. 01, 1974 | S. Mizoguchi | Boring Head | boring heads | |