Takehiko Oki

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 4,964,587
- Issue date Oct 23, 1990
- Mitsubishi Jukogyo Kabushiki Kaisha
- Takehiko Oki
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...