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.)
Railway Technical Research Institute
Sankosha Co Ltd
Original Assignee
Railway Technical Research Institute
Sankosha 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 Railway Technical Research Institute, Sankosha Co LtdfiledCriticalRailway Technical Research Institute
Priority to JP1453382ApriorityCriticalpatent/JPS58133954A/ja
Publication of JPS58133954ApublicationCriticalpatent/JPS58133954A/ja
Publication of JPS6353063B2publicationCriticalpatent/JPS6353063B2/ja