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Mitsugi Kubota

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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for manufacture of antimony of high purity
    • Patent number 4,629,501
    • Issue date Dec 16, 1986
    • Sumitomo Metal Mining Company Limited
    • Mitsugi Kubota
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...