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Priority claimed from JP60045985Aexternal-prioritypatent/JPS61206908A/ja
Priority claimed from JP60087758Aexternal-prioritypatent/JPS61246913A/ja
Priority claimed from JP60087757Aexternal-prioritypatent/JPS61246912A/ja
Priority claimed from JP60282325Aexternal-prioritypatent/JPS62141622A/ja
Application filed by Sony CorpfiledCriticalSony Corp
Priority claimed from EP86103043Aexternal-prioritypatent/EP0194603B1/de
Application grantedgrantedCritical
Publication of ATE76699T1publicationCriticalpatent/ATE76699T1/de