申请人 |
SCHLUMBERGER CANADA LIMITED;PRAD RESEARCH AND DEVELOPMENT N.V;SCHLUMBERGER SURENCO, S.A.;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER OVERSEAS S.A.;SCHLUMBERGER SERVICES LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
ALVARADO, JUAN, C.;ABNEY, III, JOHN, M. |