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Priority claimed from FR8300245Aexternal-prioritypatent/FR2539158B1/en
Priority claimed from FR8313744Aexternal-prioritypatent/FR2551110B1/en
Application filed by Paul Persohn, Philippe PersohnfiledCriticalPaul Persohn
Priority claimed from EP19840450001external-prioritypatent/EP0116005B1/en
Application grantedgrantedCritical
Publication of ATE39718T1publicationCriticalpatent/ATE39718T1/en