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 JP1977004982UpriorityCriticalpatent/JPS5647011Y2/ja
Priority to US05/867,192prioritypatent/US4174796A/en
Publication of JPS53100665UpublicationCriticalpatent/JPS53100665U/ja
Application grantedgrantedCritical
Publication of JPS5647011Y2publicationCriticalpatent/JPS5647011Y2/ja