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 filed by 株式会社学習研究社filedCritical株式会社学習研究社
Priority to JP9272184UpriorityCriticalpatent/JPS618101U/ja
Publication of JPS618101UpublicationCriticalpatent/JPS618101U/ja
Application grantedgrantedCritical
Publication of JPS6337203Y2publicationCriticalpatent/JPS6337203Y2/ja