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 JP62241936Aexternal-prioritypatent/JPS6484540A/en
Application filed by Sony CorpfiledCriticalSony Corp
Priority to SG180394ApriorityCriticalpatent/SG180394G/en
Publication of SG180394GpublicationCriticalpatent/SG180394G/en