TREA

Shoei Takada

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  • Akita, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process of recovering platinum group metal
    • Patent number 5,252,305
    • Issue date Oct 12, 1993
    • Tanaka Kikinzoku Kogyo K.K.
    • Nobuyasu Ezawa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...