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Hydrophone for use in a downhole tool
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Patent number 6,594,199
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Issue date Jul 15, 2003
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Halliburton Energy Services, Inc.
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James R. Birchak
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
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Downhole densitometer
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Patent number 6,543,281
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Issue date Apr 8, 2003
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Halliburton Energy Services, Inc.
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Michael T. Pelletier
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G01 - MEASURING TESTING
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Hydrophone for use in a downhole tool
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Patent number 6,438,070
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Issue date Aug 20, 2002
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Halliburton Energy Services, Inc.
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James R. Birchak
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
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Downhole densitometer
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Patent number 6,378,364
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Issue date Apr 30, 2002
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Halliburton Energy Services, Inc.
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Michael T. Pelletier
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E21 - EARTH DRILLING MINING
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