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Well-tubing expansion joint
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Patent number 4,423,889
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Issue date Jan 3, 1984
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Dresser Industries, Inc.
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Stanley A. Weise
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E21 - EARTH DRILLING MINING
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Slip deployment mechanism
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Patent number 4,340,116
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Issue date Jul 20, 1982
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Dresser Industries, Inc.
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Stanley A. Weise
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E21 - EARTH DRILLING MINING
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-
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Casing collar indicator
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Patent number 4,067,386
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Issue date Jan 10, 1978
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Dresser Industries, Inc.
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Stanley Allan Weise
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E21 - EARTH DRILLING MINING