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 JP15446885UpriorityCriticalpatent/JPS6263730U/ja
Priority to US06/912,680prioritypatent/US4720722A/en
Publication of JPS6263730UpublicationCriticalpatent/JPS6263730U/ja
