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 JP11418977UpriorityCriticalpatent/JPS5440791U/ja
Priority to US05/931,528prioritypatent/US4242799A/en
Priority to GB7833679Aprioritypatent/GB2005613B/en
Publication of JPS5440791UpublicationCriticalpatent/JPS5440791U/ja