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Priority claimed from FR8813137Aexternal-prioritypatent/FR2636881B1/fr
Priority claimed from FR8813998Aexternal-prioritypatent/FR2637509B1/fr
Priority claimed from FR8903264Aexternal-prioritypatent/FR2643852B2/fr
Application filed by Skid SafiledCriticalSkid Sa
Priority claimed from EP89420366Aexternal-prioritypatent/EP0367684B1/de
Application grantedgrantedCritical
Publication of ATE72764T1publicationCriticalpatent/ATE72764T1/de