申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER (SPS);SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED A BRITISH VIRGIN ISLANDS COMPANY;TULETT, JOHN, RICHARD;WILSON, COLIN, A. |
发明人 |
TULETT, JOHN, RICHARD;WILSON, COLIN, A. |