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D'Ascenzo David S.

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Daiichi Dentsu, K.K.

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Darling W. Brian

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De Poan Pneamatic Corp.

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Delmag Maschinenfabrik Reinhold Dornfeld GmbH & Co.

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DePagter Glenn F.

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Deutsche Gardner-Denver G.m.b.H.

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Deutsche Gardner-Denver GmbH

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Drilling Technology Research Institute of Shengli Oilfield

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Dynadrill, Inc.

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Elger William A.

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Elmer Stefan

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Ets Charles Maire

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Evarts Kingsley S.

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Fendo Oy

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Findeli Bernard

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Firma Schmid & Wezel

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Frederick Leonard L.

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Fridie Willmon J.

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Fridie, Jr. Willmong22

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