TREA

Frank A. Stephens

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  • Tucson, AR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydrometallurgical recovery of metal values
    • Patent number 4,200,455
    • Issue date Apr 29, 1980
    • UOP Inc.
    • James A. Bradbury
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...