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Priority claimed from FR8311139Aexternal-prioritypatent/FR2548687B1/en
Priority claimed from FR838314392Aexternal-prioritypatent/FR2551769B2/en
Application filed by Rhone Poulenc ChimiefiledCriticalRhone Poulenc Chimie
Application grantedgrantedCritical
Publication of ATE81156T1publicationCriticalpatent/ATE81156T1/en