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Priority claimed from JP56057630Aexternal-prioritypatent/JPS57171860A/ja
Priority claimed from JP4585982Aexternal-prioritypatent/JPS58162149A/ja
Application filed by Sony CorpfiledCriticalSony Corp
Priority claimed from PCT/JP1982/000125external-prioritypatent/WO1982003719A1/ja
Application grantedgrantedCritical
Publication of ATE56835T1publicationCriticalpatent/ATE56835T1/de