Andreas Huppertz

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Cologne-Mulheim, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of dihydroxyanthraquinones
- Patent number 4,002,654
- Issue date Jan 11, 1977
- Bayer Aktiengesellschaft
- Andreas Huppertz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...