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Priority claimed from AT492876Aexternal-prioritypatent/AT361575B/de
Application filed by Coulter Information SystemsfiledCriticalCoulter Information Systems
Publication of ATA979376ApublicationCriticalpatent/ATA979376A/de
Application grantedgrantedCritical
Publication of AT354251BpublicationCriticalpatent/AT354251B/de