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
CA716491A
Inventor
Sautier Francis
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.)
LES OXYDES FRANCAIS SA
Original Assignee
LES OXYDES FRANCAIS SA
Publication date
Application grantedgrantedCritical
Publication of CA716491ApublicationCriticalpatent/CA716491A/en