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>
Ohbayashi Gumi Ltd
Japan National Railways
Obayashi Gumi Ltd
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Ohbayashi Gumi Ltd
Japan National Railways
Obayashi Gumi 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>, Ohbayashi Gumi Ltd, Japan National Railways, Obayashi Gumi LtdfiledCriticalJAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP6638480ApriorityCriticalpatent/JPS5949973B2/ja
Publication of JPS56163323ApublicationCriticalpatent/JPS56163323A/ja
Publication of JPS5949973B2publicationCriticalpatent/JPS5949973B2/ja