申请人 |
SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION;DYBEVIK, ARTHUR;NESLAND, KNUT;MOEN, TERJE |
发明人 |
DYBEVIK, ARTHUR;NESLAND, KNUT;MOEN, TERJE |