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 JP11667978UpriorityCriticalpatent/JPS5534157U/ja
Priority to GB7929615Aprioritypatent/GB2066939B/en
Priority to US06/070,504prioritypatent/US4329139A/en
Publication of JPS5534157UpublicationCriticalpatent/JPS5534157U/ja