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Priority claimed from FR8600026Aexternal-prioritypatent/FR2592365B1/fr
Priority claimed from FR8610533Aexternal-prioritypatent/FR2601650B2/fr
Application filed by SocarfiledCriticalSocar
Priority claimed from EP19860402968external-prioritypatent/EP0228971B1/de
Application grantedgrantedCritical
Publication of ATE61983T1publicationCriticalpatent/ATE61983T1/de