4. Boring or penetrating the earth
  5. With heating or cooling drilling fluid
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Champness Al T.

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Champness Elwood

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Chistyakov Valery Konstantinovich

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Coyne & Bellier, Bureau d' ingenieurs Conseils

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Ertas Mehmet D.

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Franklin Lindsay J.

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Gaudy Claude Francois

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Guerber Paul L.

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Herhold Amy B.

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Kellner Jackson M.

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Lofton John

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McQueen Robert William

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Ricks Robert E.

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Sun Youhong

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Task Environmental Services BV.

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Többen Bernardus Johannes

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van Eek Wouter H.

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van Eek Wouter H.

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Xue Jun

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Yates, Jr. Donald N.

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