申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LTD;VALERO, HENRI-PIERRE;DJIKPESSE, HUGUES, A.;SINHA, BIKASH, K. |
发明人 |
VALERO, HENRI-PIERRE;DJIKPESSE, HUGUES, A.;SINHA, BIKASH, K. |