Erhard Worfel

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Hattersheim, am Main, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of water-soluble azo dyestuffs by react...
- Patent number 4,035,350
- Issue date Jul 12, 1977
- Hoechst Aktiengesellschaft
- Josef Landler
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...