Haruki Takeuchi

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Odawara, JP

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 4,590,784
- Issue date May 27, 1986
- Nippon Kokan Kabushiki Kaisha
- Jiro Okabe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...