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
CA860888A
Inventor
Sander Pierre
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.)
D'EXPLOITATION DES PROCEDES SUBLISTATIC Ste
Original Assignee
D'EXPLOITATION DES PROCEDES SUBLISTATIC Ste
Publication date
Application grantedgrantedCritical
Publication of CA860888ApublicationCriticalpatent/CA860888A/en