TREA

Minoru Nishibe

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  • Kobe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Inner grooving process for a metallic tube
    • Patent number 4,876,869
    • Issue date Oct 31, 1989
    • Kabushiki Kaisha Kobe Seiko Sho
    • Chikara Saeki
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...