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 JP1972022856UpriorityCriticalpatent/JPS5139067Y2/ja
Publication of JPS4897520UpublicationCriticalpatent/JPS4897520U/ja
Application grantedgrantedCritical
Publication of JPS5139067Y2publicationCriticalpatent/JPS5139067Y2/ja