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Priority claimed from DE2324159Aexternal-prioritypatent/DE2324159A1/de
Application filed by Plate Bonn GmbhfiledCriticalPlate Bonn Gmbh
Publication of ATA797376ApublicationCriticalpatent/ATA797376A/de
Application grantedgrantedCritical
Publication of AT352237BpublicationCriticalpatent/AT352237B/de