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 JP731488ApriorityCriticalpatent/JPS5525391B2/ja
Priority to US428999Aprioritypatent/US3879931A/en
Publication of JPS4990172ApublicationCriticalpatent/JPS4990172A/ja
Publication of JPS5525391B2publicationCriticalpatent/JPS5525391B2/ja