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Priority claimed from FR8019691Aexternal-prioritypatent/FR2490089A1/fr
Priority claimed from FR8108394Aexternal-prioritypatent/FR2504382B2/fr
Application filed by SeirmifiledCriticalSeirmi
Priority claimed from EP81401137Aexternal-prioritypatent/EP0048187B1/de
Application grantedgrantedCritical
Publication of ATE18850T1publicationCriticalpatent/ATE18850T1/de