申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER SEACO, INC.;WILLIAMS, MICHAEL, JOHN;KHADHRAOUI, BASSEM |
发明人 |
WILLIAMS, MICHAEL, JOHN;KHADHRAOUI, BASSEM |