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Priority claimed from FR8510737Aexternal-prioritypatent/FR2584868B1/fr
Priority claimed from FR8518352Aexternal-prioritypatent/FR2591391B1/fr
Application filed by Elf Aquitaine, Hydro QuebecfiledCriticalElf Aquitaine
Priority claimed from EP86401535Aexternal-prioritypatent/EP0213985B1/de
Application grantedgrantedCritical
Publication of ATE46408T1publicationCriticalpatent/ATE46408T1/de