TREA

Syuhei Ishikawa

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  • Nagoya City, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electroconductive spring material
    • Patent number 4,692,192
    • Issue date Sep 8, 1987
    • NGK Insulators, Ltd.
    • Kazuo Ikushima
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents