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Richard A. Barstow

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  • Addison, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Shaft furnace
    • Patent number 5,890,889
    • Issue date Apr 6, 1999
    • Cyprus Amax Minerals Company
    • Richard A. Barstow
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...