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 JP1977100622UpriorityCriticalpatent/JPS5640349Y2/ja
Publication of JPS5428556UpublicationCriticalpatent/JPS5428556U/ja
Application grantedgrantedCritical
Publication of JPS5640349Y2publicationCriticalpatent/JPS5640349Y2/ja