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 JP1981025922UpriorityCriticalpatent/JPS6312476Y2/ja
Publication of JPS57142490UpublicationCriticalpatent/JPS57142490U/ja
Application grantedgrantedCritical
Publication of JPS6312476Y2publicationCriticalpatent/JPS6312476Y2/ja