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 JP3916877UpriorityCriticalpatent/JPS5623820Y2/ja
Priority to US05/889,802prioritypatent/US4231072A/en
Publication of JPS53133713UpublicationCriticalpatent/JPS53133713U/ja
Application grantedgrantedCritical
Publication of JPS5623820Y2publicationCriticalpatent/JPS5623820Y2/ja