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 JP8132474UpriorityCriticalpatent/JPS5520942Y2/ja
Publication of JPS5111220UpublicationCriticalpatent/JPS5111220U/ja
Application grantedgrantedCritical
Publication of JPS5520942Y2publicationCriticalpatent/JPS5520942Y2/ja