DRILLING FLUID CIRCULATION SYSTEM
JONES, EMRYS H., JR, LAUER, STEPHEN D, MASON, CHARLES E, THAKUR, PRAMOD C
Year of Publication 13.07.1982
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Year of Publication 13.07.1982
Patent
Drilling fluid circulation system
LAUER; STEPHEN D, JONES, JR.; EMRYS H, MASON; CHARLES E, THAKUR; PRAMOD C
Year of Publication 27.01.1981
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Year of Publication 27.01.1981
Patent