Sizuo Maruo

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Okazaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a corrugated fin and a shaping roll appara...
- Patent number 5,176,020
- Issue date Jan 5, 1993
- Nippondenso Co., Ltd.
- Sizuo Maruo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...