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
CA862473A
Inventor
Bereziat Andre
Podesta Armando
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.)
L'ALUMINIUM FRANCAIS
Original Assignee
L'ALUMINIUM FRANCAIS
Publication date
Application grantedgrantedCritical
Publication of CA862473ApublicationCriticalpatent/CA862473A/en