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Priority claimed from JP58040959Aexternal-prioritypatent/JPS59167810A/ja
Priority claimed from JP58046796Aexternal-prioritypatent/JPH0767087B2/ja
Application filed by Sony CorpfiledCriticalSony Corp
Priority claimed from PCT/JP1984/000099external-prioritypatent/WO1984003808A1/ja
Application grantedgrantedCritical
Publication of ATE57780T1publicationCriticalpatent/ATE57780T1/de