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 JP8848785UpriorityCriticalpatent/JPS61203865U/ja
Priority to US06/871,864prioritypatent/US4722552A/en
Publication of JPS61203865UpublicationCriticalpatent/JPS61203865U/ja