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.)
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.)
PETTY-RAY GEOPHYSICAL
Original Assignee
PETTY-RAY GEOPHYSICAL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CA144,943Aexternal-prioritypatent/CA958108A/en
Application filed by PETTY-RAY GEOPHYSICALfiledCriticalPETTY-RAY GEOPHYSICAL
Priority to CA201,555ApriorityCriticalpatent/CA971663A/en
Application grantedgrantedCritical
Publication of CA971663ApublicationCriticalpatent/CA971663A/en