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.)
Nippon Koei Co Ltd
Tokyo Electric Power Co Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Nippon Koei 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 Tokyo Electric Power Co Inc, Nippon Koei Co LtdfiledCriticalTokyo Electric Power Co Inc
Priority to JP50045035ApriorityCriticalpatent/JPS51119925A/ja
Publication of JPS51119925ApublicationCriticalpatent/JPS51119925A/ja
Publication of JPS5626974B2publicationCriticalpatent/JPS5626974B2/ja