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Priority claimed from FR7835797Aexternal-prioritypatent/FR2444517A1/fr
Priority claimed from FR7927277Aexternal-prioritypatent/FR2468420A2/fr
Application filed by Michel GoubaudfiledCriticalMichel Goubaud
Priority claimed from EP79400984Aexternal-prioritypatent/EP0013206B1/de
Application grantedgrantedCritical
Publication of ATE8747T1publicationCriticalpatent/ATE8747T1/de