申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;LORETZ, IVES;DWIVEDI, ALOK;HOSATTE, PIERRE |
发明人 |
LORETZ, IVES;DWIVEDI, ALOK;HOSATTE, PIERRE |