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Gordon B. Duncan
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Montrose, GB
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Patents Grants
last 30 patents
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Patent Grant
Optical fiber conveyance, telemetry, and/or actuation
Patent number
7,140,435
Issue date
Nov 28, 2006
Schlumberger Technology Corporation
Harmel Defretin
E21 - EARTH DRILLING MINING
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last 30 patents
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Patent Application
Optical fiber conveyance, telemetry, and/or actuation
Publication number
20050034857
Publication date
Feb 17, 2005
Harmel Defretin
E21 - EARTH DRILLING MINING