TREA

Dieter Frembs

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  • Hanau, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gold polish preparation
    • Patent number 4,780,502
    • Issue date Oct 25, 1988
    • Degussa Aktiengesellschaft
    • Marion Lotze
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...