Norbert Armbrecht

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Sulzbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Water-soluble trisazo dyestuffs on the basis of a combination of na...
- Patent number 4,492,653
- Issue date Jan 8, 1985
- Hoechst Aktiengesellschaft
- Karl Sommer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Dyestuff containing at least three azo bridges
- Patent number 4,485,042
- Issue date Nov 27, 1984
- Cassella Aktiengesellschaft
- Norbert Armbrecht
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...