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 US31414472external-prioritypatent/US3803960A/en
Application filedfiledCritical
Publication of JPS4988185ApublicationCriticalpatent/JPS4988185A/ja
Publication of JPS5761557B2publicationCriticalpatent/JPS5761557B2/ja
