申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;KRUSH, ROBERT;MOEN, TERJE;YUAN, MARK;MARSH, ARNOLD G. |
发明人 |
KRUSH, ROBERT;MOEN, TERJE;YUAN, MARK;MARSH, ARNOLD G. |