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Priority claimed from DE2324160Aexternal-prioritypatent/DE2324160A1/de
Application filed by Plate Bonn GmbhfiledCriticalPlate Bonn Gmbh
Publication of ATA570176ApublicationCriticalpatent/ATA570176A/de
Application grantedgrantedCritical
Publication of AT351654BpublicationCriticalpatent/AT351654B/de