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.)
Expired
Application number
CA660063A
Inventor
Ototani Tohei
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.)
Research Institute for Iron Steel and Other Metals of Tohoku University
Original Assignee
Research Institute for Iron Steel and Other Metals of Tohoku University
Publication date
Application grantedgrantedCritical
Publication of CA660063ApublicationCriticalpatent/CA660063A/en