申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;VALENZA, JOHN J. III;DRENZEK, NICHOLAS, J.;MARQUES, FLORA;GROTHEER, HENDRIK;WILLBERG, DEAN, M. |
发明人 |
VALENZA, JOHN J. III;DRENZEK, NICHOLAS, J.;MARQUES, FLORA;GROTHEER, HENDRIK;WILLBERG, DEAN, M. |