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 JP49021458ApriorityCriticalpatent/JPS521970B2/ja
Publication of JPS50116638ApublicationCriticalpatent/JPS50116638A/ja
Publication of JPS521970B2publicationCriticalpatent/JPS521970B2/ja