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 JP1973070446UpriorityCriticalpatent/JPS5552476Y2/ja
Priority to US461417Aprioritypatent/US3902396A/en
Publication of JPS5018223UpublicationCriticalpatent/JPS5018223U/ja
Application grantedgrantedCritical
Publication of JPS5552476Y2publicationCriticalpatent/JPS5552476Y2/ja