TREA

Hiroshi Ando

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Working roll shift type rolling mill
    • Patent number 4,770,021
    • Issue date Sep 13, 1988
    • Hitachi, Ltd.
    • Kazuo Kobayashi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...