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.)
Furukawa Electric Co Ltd
NGK Insulators Ltd
Tokyo Electric Power Co Holdings Inc
Original Assignee
Furukawa Electric Co Ltd
NGK Insulators Ltd
Tokyo Electric Power Co Inc
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 Furukawa Electric Co Ltd, NGK Insulators Ltd, Tokyo Electric Power Co IncfiledCriticalFurukawa Electric Co Ltd
Priority to JP5585779UpriorityCriticalpatent/JPS5929306Y2/ja
Publication of JPS55156392UpublicationCriticalpatent/JPS55156392U/ja
Application grantedgrantedCritical
Publication of JPS5929306Y2publicationCriticalpatent/JPS5929306Y2/ja