TREA

Dietger Dunkelmann

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  • Postfach, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Protection of graphite electrodes
    • Patent number 4,438,515
    • Issue date Mar 20, 1984
    • Foseco Trading A.G.
    • Dietger Dunkelmann
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Protection of graphite electrodes
    • Patent number 4,435,510
    • Issue date Mar 6, 1984
    • Foseco Trading A.G.
    • Dennis Greensmith
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Treatment of electrodes
    • Patent number 4,121,955
    • Issue date Oct 24, 1978
    • Foseco Trading A.G.
    • Helmut Jaunich
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR