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Patents Grantslast 30 patents

Information Patent Grant
Water-soluble maroon and rubine sulphodiphenylazophenyl- or naphthy...
- Patent number 3,932,379
- Issue date Jan 13, 1976
- Althouse Tertre en abrege "Atsa" societe anonyme
- Andre T. Brulard
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...