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Priority claimed from CH3225/89Aexternal-prioritypatent/CH681071A5/fr
Priority claimed from FR8914104Aexternal-prioritypatent/FR2653368B1/fr
Application filed by Lasag AgfiledCriticalLasag Ag
Priority claimed from EP90116352Aexternal-prioritypatent/EP0421117B1/de
Application grantedgrantedCritical
Publication of ATE102525T1publicationCriticalpatent/ATE102525T1/de