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
Priority claimed from US379652Aexternal-prioritypatent/US3915632A/en
Application filedfiledCritical
Publication of JPS56123896UpublicationCriticalpatent/JPS56123896U/ja
Application grantedgrantedCritical
Publication of JPS602233Y2publicationCriticalpatent/JPS602233Y2/ja