TREA

Douglas S. Hammond

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  • Newark, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Luminaire
    • Patent number D307188
    • Issue date Apr 10, 1990
    • Holophane Company, Inc.
    • James E. Denney
    • D26 - Lighting
  • Information Patent Grant

    Luminaire
    • Patent number D300670
    • Issue date Apr 11, 1989
    • Manville Corporation
    • Robert L. Ewing
    • D26 - Lighting
  • Information Patent Grant

    Luminaire
    • Patent number D300671
    • Issue date Apr 11, 1989
    • Manville Corporation
    • Robert L. Ewing
    • D26 - Lighting