申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;REID, LENNOX, ERROL;LAVAURE, RACHEL, AGNES |
发明人 |
REID, LENNOX, ERROL;LAVAURE, RACHEL, AGNES |