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>
Hitachi Cable Ltd
Japan National Railways
Nippon Kokuyu Tetsudo
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Hitachi Cable Ltd
Japan National Railways
Nippon Kokuyu Tetsudo
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>, Hitachi Cable Ltd, Japan National Railways, Nippon Kokuyu TetsudofiledCriticalJAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP12343675ApriorityCriticalpatent/JPS5249508A/ja
Publication of JPS5249508ApublicationCriticalpatent/JPS5249508A/ja
Publication of JPS5516845B2publicationCriticalpatent/JPS5516845B2/ja