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Marvin A. Keller
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Bartlesville, OK, US
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last 30 patents
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Patent Grant
System and method for deploying a wireline retrievable tool in a de...
Patent number
6,138,764
Issue date
Oct 31, 2000
Camco International, Inc.
Kevin T. Scarsdale
E21 - EARTH DRILLING MINING
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Patent Grant
Wellbore cable protector
Patent number
5,973,270
Issue date
Oct 26, 1999
Camco International, Inc.
Marvin A. Keller
E21 - EARTH DRILLING MINING