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Priority claimed from FR8220237Aexternal-prioritypatent/FR2536627B1/en
Priority claimed from FR8220238Aexternal-prioritypatent/FR2536626B1/en
Application filed by Pierre NaudfiledCriticalPierre Naud
Priority claimed from EP19830402284external-prioritypatent/EP0110788B1/en
Application grantedgrantedCritical
Publication of ATE21316T1publicationCriticalpatent/ATE21316T1/en