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Priority claimed from JP59232077Aexternal-prioritypatent/JPS61110359A/ja
Priority claimed from JP60146268Aexternal-prioritypatent/JPH0650582B2/ja
Application filed by Sony CorpfiledCriticalSony Corp
Priority claimed from EP85307747Aexternal-prioritypatent/EP0180432B1/de
Application grantedgrantedCritical
Publication of ATE69328T1publicationCriticalpatent/ATE69328T1/de