LandOfFree - US Patents - Listing for Valves and valve actuation

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Douglas, Jr. David A.

Inventor

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Doulbe-E Inc.

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Doust Phillip George

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Douty James

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Dowd Peter

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Doyle Darrold E.

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Doyle Mark Christopher

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Dr. Huelle Energie, Engineering GmbH

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Dragone Rocco V.

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Dragoni Christian

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Drahusz George

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Dralyuk Igor N.

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Dreisilker Ralf

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Dresser-Rand Company

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Drexel Oil Field Services, Inc.

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Driggs B. Scott

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Drummer Eugen

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Duan Shizhong

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Dubois Jean-Paul

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Ducharme Gerard E.

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