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 JP6645477UpriorityCriticalpatent/JPS53160208U/ja
Priority to US05/858,198prioritypatent/US4211045A/en
Publication of JPS53160208UpublicationCriticalpatent/JPS53160208U/ja
Priority to US06/064,732prioritypatent/US4333285A/en