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Yoshiro Maita

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  • Shimizu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    High-rigidity sheet-metal structure
    • Patent number 5,564,247
    • Issue date Oct 15, 1996
    • Hitachi, Ltd.
    • Keiichi Nakamura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...