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Priority claimed from DE19883833748external-prioritypatent/DE3833748A1/en
Priority claimed from DE19883834353external-prioritypatent/DE3834353C1/en
Application filed by Mannesmann AgfiledCriticalMannesmann Ag
Priority claimed from EP89250034Aexternal-prioritypatent/EP0361630B1/en
Application grantedgrantedCritical
Publication of ATE77136T1publicationCriticalpatent/ATE77136T1/en