Sandro Ponzini

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Saronno (Varese), IT

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Patents Grantslast 30 patents

Information Patent Grant
Trisazo dyes containing two different aminonaphtholsulphonic acid c...
- Patent number 4,052,380
- Issue date Oct 4, 1977
- Aziende Colori Nazionali Affini Acna S.p.A.
- Ermanno Gaetani
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...