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Priority claimed from FR7833404Aexternal-prioritypatent/FR2442456A1/fr
Priority claimed from FR7902871Aexternal-prioritypatent/FR2448157A2/fr
Application filed by Tissmetal Lionel-DupontfiledCriticalTissmetal Lionel-Dupont
Priority claimed from EP19790400915external-prioritypatent/EP0012076B1/de
Application grantedgrantedCritical
Publication of ATE1725T1publicationCriticalpatent/ATE1725T1/de