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Clark W. Beam
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Houston, TX, US
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last 30 patents
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Patent Grant
Ram blowout preventer securing and retracting apparatus
Patent number
4,504,037
Issue date
Mar 12, 1985
Hydril Company
Clark W. Beam
E21 - EARTH DRILLING MINING
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Patent Grant
Testing mechanism for blowout preventer ram lock
Patent number
4,293,115
Issue date
Oct 6, 1981
Hydril Company
Glenn C. Parks
E21 - EARTH DRILLING MINING