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 JP1981021470UpriorityCriticalpatent/JPS622687Y2/ja
Publication of JPS57136754UpublicationCriticalpatent/JPS57136754U/ja
Application grantedgrantedCritical
Publication of JPS622687Y2publicationCriticalpatent/JPS622687Y2/ja