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 JP4176072ApriorityCriticalpatent/JPS552724B2/ja
Publication of JPS493197ApublicationCriticalpatent/JPS493197A/ja
Publication of JPS552724B2publicationCriticalpatent/JPS552724B2/ja