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Priority claimed from DE2460304Aexternal-prioritypatent/DE2460304C2/en
Priority claimed from AT0007977Aexternal-prioritypatent/AT364717B/en
Application filed by Gruenenthal ChemiefiledCriticalGruenenthal Chemie
Publication of ATA574977ApublicationCriticalpatent/ATA574977A/en
Application grantedgrantedCritical
Publication of AT346330BpublicationCriticalpatent/AT346330B/en