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
CA793233A
Inventor
E. Beaulieu Charles
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.)
MINISTERE DES RICHESSES NATURELLES DU GOUVERNEMENT DU QUEBEC
Original Assignee
MINISTERE DES RICHESSES NATURELLES DU GOUVERNEMENT DU QUEBEC
Publication date
Application grantedgrantedCritical
Publication of CA793233ApublicationCriticalpatent/CA793233A/en