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 GEOPHYSICAL ENG CO
Original Assignee
PETTY GEOPHYSICAL ENG CO
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
Application filed by PETTY GEOPHYSICAL ENG COfiledCriticalPETTY GEOPHYSICAL ENG CO
Priority to FR7212338ApriorityCriticalpatent/FR2178809A1/fr
Publication of FR2178809A1publicationCriticalpatent/FR2178809A1/fr
