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
CA695801A
Inventor
Takada Koji
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.)
Toyo Kinzoku kagaku KK
Original Assignee
Toyo Kinzoku kagaku KK
Publication date
Application grantedgrantedCritical
Publication of CA695801ApublicationCriticalpatent/CA695801A/en