Visvanathan Ramanthan

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Basel, CH

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Patents Grantslast 30 patents

Information Patent Grant
Basic diaminopyridine-(3)-azo dyestuffs
- Patent number 4,066,637
- Issue date Jan 3, 1978
- Ciba-Geigy Corporation
- Visvanathan Ramanthan
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...