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 JP1981023300UpriorityCriticalpatent/JPS6232861Y2/ja
Publication of JPS57136752UpublicationCriticalpatent/JPS57136752U/ja
Application grantedgrantedCritical
Publication of JPS6232861Y2publicationCriticalpatent/JPS6232861Y2/ja