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Brett Gullory
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Woodlands, TX, US
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last 30 patents
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Patent Grant
Port collar assembly for use in a wellbore
Patent number
6,513,595
Issue date
Feb 4, 2003
Weatherford/Lamb, Inc.
Roland R. Freiheit
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
Port Collar assembly for use in a wellbore
Publication number
20030019630
Publication date
Jan 30, 2003
Weatherford/Lamb
Roland R. Freiheit
E21 - EARTH DRILLING MINING