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Priority claimed from DE19883808605external-prioritypatent/DE3808605A1/de
Priority claimed from DE19883814717external-prioritypatent/DE3814717A1/de
Application filed by Pfister GmbhfiledCriticalPfister Gmbh
Priority claimed from EP89104386Aexternal-prioritypatent/EP0333091B1/de
Application grantedgrantedCritical
Publication of ATE81719T1publicationCriticalpatent/ATE81719T1/de