TREA

Richard Kieffer

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  • Vienna, OE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hard tantalum nitride base alloys
    • Patent number 4,095,978
    • Issue date Jun 20, 1978
    • Ugine Carbone
    • Richard Kieffer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...