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Priority claimed from DE19893920286external-prioritypatent/DE3920286A1/de
Application filed by Ewald WagnerfiledCriticalEwald Wagner
Priority claimed from EP89117357Aexternal-prioritypatent/EP0360235B1/de
Application grantedgrantedCritical
Publication of ATE90043T1publicationCriticalpatent/ATE90043T1/de