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 JP1981057188UpriorityCriticalpatent/JPS6231256Y2/ja
Publication of JPS57170970UpublicationCriticalpatent/JPS57170970U/ja
Application grantedgrantedCritical
Publication of JPS6231256Y2publicationCriticalpatent/JPS6231256Y2/ja