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
CA874406A
Inventor
Muraki Junjiro
Suzuki Nobukazu
Kanazawa Shogo
Nakashima Akira
Ishiguro Takayoshi
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
Akira Nakashima
Junjiro Muraki
Nobukazu Suzuki
Shogo Kanazawa
Takayoshi Ishiguro
Nippon Steel Corp
Publication date
Application grantedgrantedCritical
Publication of CA874406ApublicationCriticalpatent/CA874406A/en