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 JP1981088743UpriorityCriticalpatent/JPS642295Y2/ja
Publication of JPS57201658UpublicationCriticalpatent/JPS57201658U/ja
Application grantedgrantedCritical
Publication of JPS642295Y2publicationCriticalpatent/JPS642295Y2/ja