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Priority claimed from FR8104379Aexternal-prioritypatent/FR2500793A1/fr
Priority claimed from FR8113058Aexternal-prioritypatent/FR2508391A2/fr
Application filed by Georges HildebrandfiledCriticalGeorges Hildebrand
Priority claimed from EP82440005Aexternal-prioritypatent/EP0060209B1/de
Application grantedgrantedCritical
Publication of ATE19608T1publicationCriticalpatent/ATE19608T1/de