申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;PRAD RESEARCH AND DEVELOPMENT N.V.;SUGIYAMA, HITOSHI;ISO, SHINICHIRO;UMEMOTO, SATORU;KUBOTA, MIYAKO |
发明人 |
SUGIYAMA, HITOSHI;ISO, SHINICHIRO;UMEMOTO, SATORU;KUBOTA, MIYAKO |