TREA

Karl Waid

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  • Bornheim, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stabilized magnetic pigments
    • Patent number 4,689,086
    • Issue date Aug 25, 1987
    • Bayer Aktiengesellschaft
    • Rolf Naumann
    • G11 - INFORMATION STORAGE