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TIMOTHY J PLUNKETT, PAUL CAMPBELL, JING JAMES YAO, WILLIAM H DELL II, DALE R WOLFER
Year of Publication 10.09.2012
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Year of Publication 10.09.2012
Patent
Borehole conditioning apparatus
FALKNOR; CHARLES L, LYON; DALTON K, WOLFER; DALE R, VETTER; VINCENT H
Year of Publication 10.12.1985
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Year of Publication 10.12.1985
Patent