Tadashi Yamanaka

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Nagoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing mechanical parts from metal scrap
- Patent number 4,272,877
- Issue date Jun 16, 1981
- Nippondenso Co., Ltd.
- Keizo Takeuchi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...