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Priority claimed from GB878727137Aexternal-prioritypatent/GB8727137D0/en
Priority claimed from GB878729536Aexternal-prioritypatent/GB8729536D0/en
Priority claimed from GB888817887Aexternal-prioritypatent/GB8817887D0/en
Application filed by British Petroleum Co PlcfiledCriticalBritish Petroleum Co Plc
Priority claimed from EP88310375Aexternal-prioritypatent/EP0317135B1/de
Application grantedgrantedCritical
Publication of ATE85095T1publicationCriticalpatent/ATE85095T1/de