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Method and device for the measurement of the drift of a borchole
Method and device for the measurement of the drift of a borchole
US Patent
6845563
· Granted Jan 25, 2005
Estimated economic value:
$28,722,000
ⓘ
Assignee
Precision Drilling Technology Services Group
Inventors
Jonathan Robert Lewis
(1 patents)
Robert E. Hewitt
(1 patents)
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