申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V., DEN HAAG/S'GRAVENHAGE, NL |
发明人 |
VAN LOOKEREN CAMPAGNE, CONSTANT JOHAN, PYRFORD WOKING SURREY GU22 8SA, GB;MOORE, STEPHEN PETER, MAIDSTONE KENT, GB;OBENG, EDWARD DAVID ASHIHENE, SOLE STREET COBHAM KENT, GB |