申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;HUGHES, TREVOR;TUSTIN, GARY;WILSON, ALEXANDER;ABAD, CARLOS;PRAD RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
HUGHES, TREVOR;TUSTIN, GARY;WILSON, ALEXANDER;ABAD, CARLOS |