TREA

Helmut Scholtis

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  • Hanau, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of producing luminous decorations
    • Patent number 5,032,429
    • Issue date Jul 16, 1991
    • Degussa Aktiengesellschaft
    • Fritz Diefenbach
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES