TREA

Burckard Vitt

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  • Lohmar, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roof structure
    • Patent number 5,155,966
    • Issue date Oct 20, 1992
    • Ruhrkohle AG
    • Dieter Breidenbach
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Roof structure
    • Patent number 4,929,179
    • Issue date May 29, 1990
    • Ruhrkohle AG
    • Dieter Breidenbach
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...