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Priority claimed from FR8403448Aexternal-prioritypatent/FR2560917B3/en
Priority claimed from FR8412459Aexternal-prioritypatent/FR2568927B1/en
Application filed by Ferte Sous Jouarre Const ElecfiledCriticalFerte Sous Jouarre Const Elec
Priority claimed from EP19850460005external-prioritypatent/EP0156752B1/en
Application grantedgrantedCritical
Publication of ATE37623T1publicationCriticalpatent/ATE37623T1/en