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 JP2991581UpriorityCriticalpatent/JPH0236313Y2/ja
Publication of JPS57142879UpublicationCriticalpatent/JPS57142879U/ja
Application grantedgrantedCritical
Publication of JPH0236313Y2publicationCriticalpatent/JPH0236313Y2/ja