申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;PRAD RESEARCH AND DEVELOPMENT LIMITED;ALDRED, WALTER;DUNLOP, JONATHAN;BELASKIE, JAMES |
发明人 |
SCHLUMBERGER HOLDINGS LIMITED;ALDRED, WALTER;DUNLOP, JONATHAN;BELASKIE, JAMES |