申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;PATTERSON, ALBERT, E., II;LONGFIELD, COLIN;SARHAD, SHARDUL, J.;FISSELER, PATRICK, J. |
发明人 |
PATTERSON, ALBERT, E., II;LONGFIELD, COLIN;SARHAD, SHARDUL, J.;FISSELER, PATRICK, J. |