TREA

Robert E. Heckelsberg

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  • Germantown, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roofing structure
    • Patent number 4,296,581
    • Issue date Oct 27, 1981
    • AMCA International Corporation
    • Robert E. Heckelsberg
    • E04 - BUILDING
  • Information Patent Grant

    Building panel
    • Patent number 4,224,775
    • Issue date Sep 30, 1980
    • AMCA International Corporation
    • Robert E. Heckelsberg
    • E04 - BUILDING
  • Information Patent Grant

    Metal panel roofing structure
    • Patent number 4,213,282
    • Issue date Jul 22, 1980
    • AMCA International Corporation
    • Robert E. Heckelsberg
    • E04 - BUILDING
  • Information Patent Grant

    Panel mounting clip
    • Patent number 4,193,247
    • Issue date Mar 18, 1980
    • AMCA International Corporation
    • Robert E. Heckelsberg
    • E04 - BUILDING