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Priority claimed from JP60175493Aexternal-prioritypatent/JPH0740151B2/ja
Priority claimed from JP61036093Aexternal-prioritypatent/JPS62193892A/ja
Application filed by Sony CorpfiledCriticalSony Corp
Priority claimed from EP86110991Aexternal-prioritypatent/EP0212498B1/de
Application grantedgrantedCritical
Publication of ATE100604T1publicationCriticalpatent/ATE100604T1/de