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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JAPANESE NATIONAL RAILWAYS<JNR>
Toshiba Corp
Japan National Railways
Nippon Kokuyu Tetsudo
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Toshiba Corp
Japan National Railways
Nippon Kokuyu Tetsudo
Tokyo Shibaura Electric Co Ltd
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 JAPANESE NATIONAL RAILWAYS<JNR>, Toshiba Corp, Japan National Railways, Nippon Kokuyu Tetsudo, Tokyo Shibaura Electric Co LtdfiledCriticalJAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP50106805ApriorityCriticalpatent/JPS5230317A/ja
Publication of JPS5230317ApublicationCriticalpatent/JPS5230317A/ja
Publication of JPS5419726B2publicationCriticalpatent/JPS5419726B2/ja