申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;PRAD RESEARCH AND DEVELOPMENT NV;DELHOMME, JEAN-PIERRE;CAO, DI;MANIN, YVES;CHARARA, MARWAN;LACOUR-GAYET, PHILIPPE |
发明人 |
CAO, DI;MANIN, YVES;CHARARA, MARWAN;LACOUR-GAYET, PHILIPPE |