Legal status (The legal status 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 status listed.)
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
Application filedfiledCritical
Priority to JP4880381UpriorityCriticalpatent/JPS6143557Y2/ja
Priority to KR1019810004264Aprioritypatent/KR870000193B1/ko
Publication of JPS57161459UpublicationCriticalpatent/JPS57161459U/ja
Application grantedgrantedCritical
Publication of JPS6143557Y2publicationCriticalpatent/JPS6143557Y2/ja