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.)
JFE Engineering Corp
Showa Oil Co Ltd
Original Assignee
Showa Oil Co Ltd
Nippon Kokan 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 Showa Oil Co Ltd, Nippon Kokan LtdfiledCriticalShowa Oil Co Ltd
Priority to JP2508579ApriorityCriticalpatent/JPS55126073A/en
Publication of JPS55126073ApublicationCriticalpatent/JPS55126073A/en