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Priority claimed from DE19873707510external-prioritypatent/DE3707510A1/en
Priority claimed from DE19873719034external-prioritypatent/DE3719034A1/en
Application filed by Fischer Artur Werke GmbhfiledCriticalFischer Artur Werke Gmbh
Priority claimed from EP19870118505external-prioritypatent/EP0279936B1/en
Application grantedgrantedCritical
Publication of ATE57240T1publicationCriticalpatent/ATE57240T1/en