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Tommy L. Stambaugh
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Celina, TX, US
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last 30 patents
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Patent Grant
Hostile environment packer system
Patent number
5,253,705
Issue date
Oct 19, 1993
Otis Engineering Corporation
Sammy R. Clary
E21 - EARTH DRILLING MINING
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Patent Grant
Pressure operated valve
Patent number
5,181,569
Issue date
Jan 26, 1993
Otis Engineering Corporation
Brian K. McCoy
E21 - EARTH DRILLING MINING