TREA

Richard Kieffer

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  • Vienna, AT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cemented carbide
    • Patent number 4,342,594
    • Issue date Aug 3, 1982
    • Sandvik Aktiebolag
    • Peter Ettmayer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Cemented carbide containing molybdenum tungsten carbonitride having...
    • Patent number 4,212,671
    • Issue date Jul 15, 1980
    • Sandvik Aktiebolag
    • Peter Ettmayer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...