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.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works 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 Japan Steel Works LtdfiledCriticalJapan Steel Works Ltd
Priority to JP9325574ApriorityCriticalpatent/JPS538341B2/ja
Publication of JPS5126971ApublicationCriticalpatent/JPS5126971A/ja
Publication of JPS538341B2publicationCriticalpatent/JPS538341B2/ja