Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP50123638Aexternal-prioritypatent/JPS6059787B2/ja
Application filed by Sony CorpfiledCriticalSony Corp
Publication of ATA211379ApublicationCriticalpatent/ATA211379A/de
Application grantedgrantedCritical
Publication of AT380605BpublicationCriticalpatent/AT380605B/de