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Priority claimed from DE2350315Aexternal-prioritypatent/DE2350315C2/de
Application filed by Hahn Carl Dr GmbhfiledCriticalHahn Carl Dr Gmbh
Publication of ATA526678ApublicationCriticalpatent/ATA526678A/de
Application grantedgrantedCritical
Publication of AT352284BpublicationCriticalpatent/AT352284B/de