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 JP1981030793UpriorityCriticalpatent/JPS634890Y2/ja
Publication of JPS57142201UpublicationCriticalpatent/JPS57142201U/ja
Application grantedgrantedCritical
Publication of JPS634890Y2publicationCriticalpatent/JPS634890Y2/ja