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
CA912112A
Inventor
G. Holden Merrick
I. Roschuk John
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.)
CENTRAL GEOPHYSICS Ltd
Original Assignee
CENTRAL GEOPHYSICS Ltd
Publication date
Application grantedgrantedCritical
Publication of CA912112ApublicationCriticalpatent/CA912112A/en