申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;ATKINSON, WESLEY RYAN;BRYANT, CLAY E.;JASEK, SIDNEY |
发明人 |
ATKINSON, WESLEY RYAN;BRYANT, CLAY E.;JASEK, SIDNEY |