申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B. V.;PRAD RESEARCH AND DEVELOPMENT LTD.;SCHLUMBERGER TECHNOLOGY CORPORATION;ECOLE POLYTECHNIQUE;KORB, JEAN-PIERRE;FREIMAN, GABRIEL;NICOT, BENJAMIN;LIGNEUL, PATRICE |
发明人 |
KORB, JEAN-PIERRE;FREIMAN, GABRIEL;NICOT, BENJAMIN;LIGNEUL, PATRICE |