| 申请人 |
SCHLUMBERGER HOLDINGS LTD., ROAD TOWN;PETROLEUM RESEARCH AND DEVELOPMENT N.V., WILLEMSTADT;SCHLUMBERGER CANADA LTD., CALGARY;SERVICIOS DE PERFILAJES ELECTRONICOS, S.A.;SCHLUMBERGER OILFIELD ASSISTANCE LTD., PANAMA CITY;SCHLUMBERGER SEACO INC., PANAMA CITY;SCHLUMBERGER SERVICES LTD., TORTOLA;SCHLUMBERGER SURENCO S.A., PANAMA CITY;SCHLUMBERGER TECHNOLOGY B.V., DEN HAAG/ THE HAGUE;SERVICES PETROLIERS SCHLUMBERGER, PARIS |
发明人 |
DOWNTON, GEOFF |
