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Martin Neil Farquhar
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Aberdeen, GB
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last 30 patents
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Patent Application
Modular Tubing Seal Bore System
Publication number
20150069752
Publication date
Mar 12, 2015
BAKER HUGHES INCORPORATED
Martin N. Farquhar
E21 - EARTH DRILLING MINING
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Patent Application
Wellbore Shut Off Valve with Hydraulic Actuator System
Publication number
20100300702
Publication date
Dec 2, 2010
BAKER HUGHES INCORPORATED
Thad D. Andrews
E21 - EARTH DRILLING MINING