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Priority claimed from GB848419949Aexternal-prioritypatent/GB8419949D0/en
Priority claimed from GB848421643Aexternal-prioritypatent/GB8421643D0/en
Priority claimed from GB848422743Aexternal-prioritypatent/GB8422743D0/en
Application filed by British Petroleum Co PlcfiledCriticalBritish Petroleum Co Plc
Priority claimed from EP85305492Aexternal-prioritypatent/EP0173473B1/de
Application grantedgrantedCritical
Publication of ATE46179T1publicationCriticalpatent/ATE46179T1/de