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 filed by 日本国有鉄道filedCritical日本国有鉄道
Priority to JP5608480UpriorityCriticalpatent/JPS5813715Y2/ja
Publication of JPS55148620UpublicationCriticalpatent/JPS55148620U/ja
Application grantedgrantedCritical
Publication of JPS5813715Y2publicationCriticalpatent/JPS5813715Y2/ja