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Priority claimed from DE2450633Aexternal-prioritypatent/DE2450633B1/de
Priority claimed from AT1038674Aexternal-prioritypatent/AT339384B/de
Application filed by Nixdorf Computer AgfiledCriticalNixdorf Computer Ag
Priority to AT567576ApriorityCriticalpatent/ATA567576A/de
Publication of ATA567576ApublicationCriticalpatent/ATA567576A/de