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Priority claimed from DE3936725Aexternal-prioritypatent/DE3936725A1/de
Priority claimed from DE4008086Aexternal-prioritypatent/DE4008086A1/de
Application filed by Obe Werk KgfiledCriticalObe Werk Kg
Application grantedgrantedCritical
Publication of ATE86037T1publicationCriticalpatent/ATE86037T1/de