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 JP1981068790UpriorityCriticalpatent/JPH0423334Y2/ja
Publication of JPS57178462UpublicationCriticalpatent/JPS57178462U/ja
Application grantedgrantedCritical
Publication of JPH0423334Y2publicationCriticalpatent/JPH0423334Y2/ja