TREA

Ralph J. Harrison

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  • Roulette, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Glass block
    • Patent number D362310
    • Issue date Sep 12, 1995
    • Pittsburgh Corning Corporation
    • Harry A. Fleming
    • D25 - Building units and construction elements
  • Information Patent Grant

    Translucent end cap or the like
    • Patent number D318737
    • Issue date Jul 30, 1991
    • Pittsburgh Corning Corporation
    • Robert L. Wehman
    • D25 - Building units and construction elements