Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB838305182Aexternal-prioritypatent/GB8305182D0/en
Priority claimed from GB838318644Aexternal-prioritypatent/GB8318644D0/en
Publication of NO872327LpublicationCriticalpatent/NO872327L/no
Priority claimed from NO84841860Aexternal-prioritypatent/NO158458B/no
Application filed by British Petroleum CofiledCriticalBritish Petroleum Co
Priority to NO872327ApriorityCriticalpatent/NO872327D0/no
Publication of NO872327D0publicationCriticalpatent/NO872327D0/no