TREA

Norikatsu Sato

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  • Tochigi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Alloys for exhaust valves
    • Patent number 4,631,169
    • Issue date Dec 23, 1986
    • Daido Tokushuko Kabushiki Kaisha
    • Susumu Isobe
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...