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Priority claimed from DE19893909883external-prioritypatent/DE3909883A1/de
Priority claimed from DE19893940650external-prioritypatent/DE3940650C1/de
Application filed by Linke Hofmann BuschfiledCriticalLinke Hofmann Busch
Priority claimed from EP90104791Aexternal-prioritypatent/EP0389866B1/de
Application grantedgrantedCritical
Publication of ATE94485T1publicationCriticalpatent/ATE94485T1/de