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 JP5549971UpriorityCriticalpatent/JPS5252153Y2/ja
Priority to US00252251Aprioritypatent/US3784179A/en
Publication of JPS4812480UpublicationCriticalpatent/JPS4812480U/ja
Application grantedgrantedCritical
Publication of JPS5252153Y2publicationCriticalpatent/JPS5252153Y2/ja