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Priority claimed from FR8304082Aexternal-prioritypatent/FR2542458B1/en
Priority claimed from FR8306499Aexternal-prioritypatent/FR2544876B2/en
Application filed by Alliance Tech IndfiledCriticalAlliance Tech Ind
Priority claimed from EP84400448Aexternal-prioritypatent/EP0122169B1/en
Application grantedgrantedCritical
Publication of ATE53676T1publicationCriticalpatent/ATE53676T1/en