申请人 |
SCLUMBERGER TECHNOLOGY B.V.;SCLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;PRAD RESEARCH AND DEVELOPMENT LIMITED A BRITISH VIRGIN ISLANDS COMPANY;SCLUMBERGER SEACO, INC.;MEETEN, GERALD;MILLS, RICHARD |
发明人 |
MEETEN, GERALD;MILLS, RICHARD |