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 JP8804978UpriorityCriticalpatent/JPS581840Y2/ja
Publication of JPS556918UpublicationCriticalpatent/JPS556918U/ja
Application grantedgrantedCritical
Publication of JPS581840Y2publicationCriticalpatent/JPS581840Y2/ja