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 Steel Corp
Original Assignee
Nippon Steel Corp
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
Priority claimed from JP14494979Aexternal-prioritypatent/JPS5669318A/en
Priority claimed from JP16226179Uexternal-prioritypatent/JPS5925879Y2/en
Priority claimed from JP15314679Aexternal-prioritypatent/JPS601922B2/en
Priority claimed from JP16941279Aexternal-prioritypatent/JPS5693816A/en
Application filed by Nippon Steel CorpfiledCriticalNippon Steel Corp
Publication of ES8201213A1publicationCriticalpatent/ES8201213A1/en
Publication of ES496663A0publicationCriticalpatent/ES496663A0/en