TREA

Klaus Fitzner

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  • Betzdorf, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double floor for removing air from rooms
    • Patent number 5,144,781
    • Issue date Sep 8, 1992
    • Heinrich Nickel GmbH
    • Klaus Fitzner
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Laminarizer
    • Patent number 4,898,087
    • Issue date Feb 6, 1990
    • Heinrich Nickel GmbH
    • Klaus Fitzner
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Pressure-wave protective flap (or damper)
    • Patent number 4,576,088
    • Issue date Mar 18, 1986
    • Kraftwerk Union Aktiengesellschaft
    • Wolfgang Mathewes
    • F24 - HEATING RANGES VENTILATING