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.)
SHIYOUTOKU SEISAKUSHO KK
JFE Engineering Corp
Original Assignee
SHIYOUTOKU SEISAKUSHO KK
NKK Corp
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 SHIYOUTOKU SEISAKUSHO KK, NKK Corp, Nippon Kokan LtdfiledCriticalSHIYOUTOKU SEISAKUSHO KK
Priority to JP15653775ApriorityCriticalpatent/JPS5281354A/ja
Publication of JPS5281354ApublicationCriticalpatent/JPS5281354A/ja
Publication of JPS5724225B2publicationCriticalpatent/JPS5724225B2/ja