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 JP7431381UpriorityCriticalpatent/JPH0213139Y2/ja
Publication of JPS57185531UpublicationCriticalpatent/JPS57185531U/ja
Application grantedgrantedCritical
Publication of JPH0213139Y2publicationCriticalpatent/JPH0213139Y2/ja