TREA

George C. Harper Jr.

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  • Coraopolis, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Joint for space frames
    • Patent number 4,474,490
    • Issue date Oct 2, 1984
    • Pittsburgh-Des Moines Corporation
    • George C. Harper
    • E04 - BUILDING
  • Information Patent Grant

    Strut for space frames
    • Patent number 4,297,825
    • Issue date Nov 3, 1981
    • Pittsburgh-Des Moines Corporation
    • George C. Harper
    • E04 - BUILDING
  • Information Patent Grant

    Joint for space frames
    • Patent number 4,283,156
    • Issue date Aug 11, 1981
    • Pittsburgh des Moines Steel Company
    • George C. Harper
    • E04 - BUILDING
  • Information Patent Grant

    Joint for geodesic dome
    • Patent number 4,244,152
    • Issue date Jan 13, 1981
    • Pittsburgh des Moines Steel Company
    • George C. Harper
    • E04 - BUILDING