TREA

Grunzweig + Hartmann und Glasfaser AG

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  • Ludwigshafen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat-insulating body
    • Patent number 4,399,175
    • Issue date Aug 16, 1983
    • Grunzweig + Hartmann und Glasfaser AG
    • Hans Kummermehr
    • E04 - BUILDING
  • Information Patent Grant

    Process for making a thermal insulating body
    • Patent number 4,363,738
    • Issue date Dec 14, 1982
    • Grunzweig + Hartmann und Glasfaser AG
    • Hans Kummermehr
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES