申请人 |
SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER SURENCO S.A.;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER OVERSEAS S.A.;PRAD RESEARCH AND DEVELOPMENT N.V.;SCHLUMBERGER SERVICES LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;ROGERIO, T., RAMOS;BARRY, READ |
发明人 |
ROGERIO, T., RAMOS;BARRY, READ |