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 JP8549272ApriorityCriticalpatent/JPS4939957A/ja
Priority to US05/391,166prioritypatent/US3983591A/en
Publication of JPS4939957ApublicationCriticalpatent/JPS4939957A/ja