TREA

Harold W. Cobb

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  • Acton, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Corona device
    • Patent number 4,514,781
    • Issue date Apr 30, 1985
    • Paul E. Plasschaert
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Corona charging apparatus
    • Patent number 4,476,387
    • Issue date Oct 9, 1984
    • Delphax Systems
    • Harold W. Cobb
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Corona charging apparatus
    • Patent number 4,446,371
    • Issue date May 1, 1984
    • Delphax Systems
    • Harold W. Cobb
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Corona charging apparatus
    • Patent number 4,379,969
    • Issue date Apr 12, 1983
    • Dennison Manufacturing Company
    • Harold W. Cobb
    • H01 - BASIC ELECTRIC ELEMENTS