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Priority claimed from AT0003896Aexternal-prioritypatent/AT404644B/de
Application filed by Digital Audio Disc CorpfiledCriticalDigital Audio Disc Corp
Priority to AT217796ApriorityCriticalpatent/AT405699B/de
Publication of ATA217796ApublicationCriticalpatent/ATA217796A/de
Application grantedgrantedCritical
Publication of AT405699BpublicationCriticalpatent/AT405699B/de