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Priority claimed from FR8014702Aexternal-prioritypatent/FR2486090A1/en
Priority claimed from FR8015510Aexternal-prioritypatent/FR2486560B1/en
Application filed by Soletanche Societe Anonyme Dite:filedCriticalSoletanche Societe Anonyme Dite:
Priority claimed from EP19810401058external-prioritypatent/EP0043332B1/en
Application grantedgrantedCritical
Publication of ATE11682T1publicationCriticalpatent/ATE11682T1/en