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Priority claimed from FR8507997Aexternal-prioritypatent/FR2582255B1/en
Priority claimed from FR8512694Aexternal-prioritypatent/FR2586375B2/en
Application filed by Guy ArnaudfiledCriticalGuy Arnaud
Priority claimed from EP19860903402external-prioritypatent/EP0221982B1/en
Application grantedgrantedCritical
Publication of ATE49246T1publicationCriticalpatent/ATE49246T1/en