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>
Furukawa Electric Co Ltd
Hitachi Cable Ltd
Japan National Railways
Sumitomo Electric Industries Ltd
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Furukawa Electric Co Ltd
Hitachi Cable Ltd
Japan National Railways
Sumitomo Electric Industries 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>, Furukawa Electric Co Ltd, Hitachi Cable Ltd, Japan National Railways, Sumitomo Electric Industries LtdfiledCriticalJAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP15913876ApriorityCriticalpatent/JPS5383007A/ja
Publication of JPS5383007ApublicationCriticalpatent/JPS5383007A/ja
Publication of JPS5610869B2publicationCriticalpatent/JPS5610869B2/ja