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Priority claimed from AT788476Aexternal-prioritypatent/AT350122B/de
Application filed by Dainippon Toryo KkfiledCriticalDainippon Toryo Kk
Priority to AT396078ApriorityCriticalpatent/AT358110B/de
Publication of ATA396078ApublicationCriticalpatent/ATA396078A/de
Application grantedgrantedCritical
Publication of AT358110BpublicationCriticalpatent/AT358110B/de