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John F. Held

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  • Hudson, OH, US
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  • Information Patent Grant

    As-hot rolled bar steel
    • Patent number 4,806,177
    • Issue date Feb 21, 1989
    • LTV Steel Company, Inc.
    • John F. Held
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...