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Priority claimed from DE2817345Aexternal-prioritypatent/DE2817345C2/de
Priority claimed from AT0299579Aexternal-prioritypatent/AT380052B/de
Application filed by Gartner & Co JfiledCriticalGartner & Co J
Priority to AT387583ApriorityCriticalpatent/AT382228B/de
Publication of ATA387583ApublicationCriticalpatent/ATA387583A/de
Application grantedgrantedCritical
Publication of AT382228BpublicationCriticalpatent/AT382228B/de