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Ferrania SpA
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Ferrania SpA
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Application filed by Ferrania SpAfiledCriticalFerrania SpA
Priority to FR912561ApriorityCriticalpatent/FR1337620A/fr
Application grantedgrantedCritical
Publication of FR1337620ApublicationCriticalpatent/FR1337620A/fr
Nouveaux colorants de cyanines dérivant de bases du type du 1-alpha-pyridyl-2-méthyl-benzimidazol et leur utilisation pour la sensibilisation des émulsions photographiques