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 Steel Corp
Fudo Tetra Corp
Original Assignee
Fudo Construction Co Ltd
Kawasaki 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
Application filed by Fudo Construction Co Ltd, Kawasaki Steel CorpfiledCriticalFudo Construction Co Ltd
Priority to JP5807685ApriorityCriticalpatent/JPS61216921A/ja
Publication of JPS61216921ApublicationCriticalpatent/JPS61216921A/ja
Publication of JPH037762B2publicationCriticalpatent/JPH037762B2/ja