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.)
Nippon Steel Corp
Original Assignee
Sumitomo Sitix 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 Sumitomo Sitix CorpfiledCriticalSumitomo Sitix Corp
Priority to JP1989076492UpriorityCriticalpatent/JP2512705Y2/ja
Publication of JPH0318171UpublicationCriticalpatent/JPH0318171U/ja
Application grantedgrantedCritical
Publication of JP2512705Y2publicationCriticalpatent/JP2512705Y2/ja