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 JP11704172UpriorityCriticalpatent/JPS518784Y2/ja
Publication of JPS4974074UpublicationCriticalpatent/JPS4974074U/ja
Application grantedgrantedCritical
Publication of JPS518784Y2publicationCriticalpatent/JPS518784Y2/ja