申请人 |
SCHLUMBERGER SURENCO SA;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER OVERSEAS S.A.;PRAD RESEARCH AND DEVELOPMENT N.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER SERVICES LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;JALALI, YOUNES;BUI, THANG, DINH;GAO, GUOHUA |
发明人 |
JALALI, YOUNES;BUI, THANG, DINH;GAO, GUOHUA |