申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED (SHL);SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER (SPS);PRAD RESEARCH AND DEVELOPMENT LIMITED A BRITISH VIRGIN ISLANDS COMPANY;SCHLUMBERGER SEACO, INC.;LAWRENCE, NATHAN;MEREDITH, ANDREW |
发明人 |
LAWRENCE, NATHAN;MEREDITH, ANDREW |