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Priority claimed from DE1937477Aexternal-prioritypatent/DE1937477C3/en
Application filed by Boehringer Sohn IngelheimfiledCriticalBoehringer Sohn Ingelheim
Publication of YU254775ApublicationCriticalpatent/YU254775A/en
Publication of YU34190BpublicationCriticalpatent/YU34190B/en