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Priority claimed from US06/508,498external-prioritypatent/US4809022A/en
Application filed by Optical Disc CorpfiledCriticalOptical Disc Corp
Priority claimed from EP84304089Aexternal-prioritypatent/EP0130026B1/de
Application grantedgrantedCritical
Publication of ATE52386T1publicationCriticalpatent/ATE52386T1/de