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.)
Nakayama Steel Works Ltd
Original Assignee
Nakayama 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 Nakayama Steel Works LtdfiledCriticalNakayama Steel Works Ltd
Priority to JP8213576ApriorityCriticalpatent/JPS537892A/ja
Publication of JPS537892ApublicationCriticalpatent/JPS537892A/ja
Publication of JPS5757205B2publicationCriticalpatent/JPS5757205B2/ja