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Priority claimed from CH3746/88Aexternal-prioritypatent/CH676786A5/fr
Priority claimed from FR8813398Aexternal-prioritypatent/FR2637491B1/fr
Application filed by Lasag AgfiledCriticalLasag Ag
Priority claimed from EP89118230Aexternal-prioritypatent/EP0362764B1/de
Application grantedgrantedCritical
Publication of ATE72624T1publicationCriticalpatent/ATE72624T1/de