Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8618471Aexternal-prioritypatent/FR2609065B1/en
Priority claimed from FR8707279Aexternal-prioritypatent/FR2615526B1/en
Application filed by Rhone Poulenc ChimiefiledCriticalRhone Poulenc Chimie
Priority claimed from EP87402917Aexternal-prioritypatent/EP0279134B1/en
Application grantedgrantedCritical
Publication of ATE57713T1publicationCriticalpatent/ATE57713T1/en