TREA

Koji Tsuyuguchi

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  • Kitakyushu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sliding nozzle apparatus
    • Patent number 4,660,749
    • Issue date Apr 28, 1987
    • Kurosaki Refractories Co., Ltd.
    • Nobuyuki Yokoi
    • B22 - CASTING POWDER METALLURGY