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 JP6741974UpriorityCriticalpatent/JPS553681Y2/ja
Publication of JPS50155941UpublicationCriticalpatent/JPS50155941U/ja
Application grantedgrantedCritical
Publication of JPS553681Y2publicationCriticalpatent/JPS553681Y2/ja