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Donald R. MacRae

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  • Bethlehem, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arc control in plasma arc reactors
    • Patent number 4,234,334
    • Issue date Nov 18, 1980
    • Bethlehem Steel Corporation
    • Donald R. MacRae
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of producing vanadium
    • Patent number 4,099,958
    • Issue date Jul 11, 1978
    • Bethlehem Steel Corporation
    • Donald R. MacRae
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of reducing ores
    • Patent number 4,002,466
    • Issue date Jan 11, 1977
    • Bethlehem Steel Corporation
    • Donald R. MacRae
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Method of reducing iron oxide
    • Patent number 3,993,473
    • Issue date Nov 23, 1976
    • Bethlehem Steel Corporation
    • Donald R. MacRae
    • C21 - METALLURGY OF IRON