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
AU18772/70A
Inventor
Van Yu Tai
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.)
Transworld Drilling Co
Original Assignee
Transworld Drilling 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 Transworld Drilling CofiledCriticalTransworld Drilling Co
Publication of AU1877270ApublicationCriticalpatent/AU1877270A/en