Gerd Hoelzie

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Liestal, CH

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Patents Grantslast 30 patents

Information Patent Grant
4-Methyl-2,6-dihydroxy-3-cyanopyridine containing dyestuffs
- Patent number 3,956,263
- Issue date May 11, 1976
- Ciba-Geigy AG
- Arthur Buehler
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...