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
CA870013A
Inventor
Nguyen Thanh-Thuong
Demozay Daniel
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.)
Pechiney Progil SA
Original Assignee
Pechiney Progil SA
Publication date
Application grantedgrantedCritical
Publication of CA870013ApublicationCriticalpatent/CA870013A/en