TREA

Herbert F. Campbell

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  • Franklin, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Protected metal article
    • Patent number 4,790,686
    • Issue date Dec 13, 1988
    • Armco Inc.
    • Christy Christ
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Protected metal article and method of making
    • Patent number 4,716,075
    • Issue date Dec 29, 1987
    • Armco Inc.
    • Christy Christ
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...