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
CA855617A
Inventor
M. J. Outin Michel
A. Hamelin Raymond
Delzenne Amand
P.-R. Pelecier Claude
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.)
WEIRITAM
Ugine Kuhlmann SA
Original Assignee
WEIRITAM
Ugine Kuhlmann SA
Publication date
Application grantedgrantedCritical
Publication of CA855617ApublicationCriticalpatent/CA855617A/en