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 JP4015779UpriorityCriticalpatent/JPS55142020U/ja
Priority to GB7940998Aprioritypatent/GB2043337B/en
Publication of JPS55142020UpublicationCriticalpatent/JPS55142020U/ja
Priority to US06/332,854prioritypatent/US4394625A/en