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 JP9413680UpriorityCriticalpatent/JPH0228556Y2/ja
Priority to US06/272,029prioritypatent/US4351222A/en
Publication of JPS5719994UpublicationCriticalpatent/JPS5719994U/ja
Application grantedgrantedCritical
Publication of JPH0228556Y2publicationCriticalpatent/JPH0228556Y2/ja