TREA

Allan L. Berg

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  • Portland, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plasma furnace
    • Patent number 4,883,258
    • Issue date Nov 28, 1989
    • Atwood P. Foster
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...