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
Priority claimed from US356074Aexternal-prioritypatent/US3918799A/en
Priority claimed from US05/448,275external-prioritypatent/US4073855A/en
Application filedfiledCritical
Publication of JPS5030972ApublicationCriticalpatent/JPS5030972A/ja
Publication of JPS5213823B2publicationCriticalpatent/JPS5213823B2/ja