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Aadnoy; Bernt Sigve
Sandnes, NO
No. of patents:

Patent Number Title Of Patent Date Issued
5655607 Downhole tool for pressure testing of oil and gas wells August 12, 1997
A downhole tool for pressure testing of oil and gas wells comprises a generally tubular main tool (1), which is provided with an internal passage (2) and is arranged for attachment at the lower end of a drill pipe string. The main tool (1) is on its outside provided with an inflatabl

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