TREA

Kaoru Terao

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  • Niihama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for extracting and recovering silver
    • Patent number 5,885,535
    • Issue date Mar 23, 1999
    • Sumitomo Metal Mining Company, Limited
    • Satoshi Asano
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...