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 GB868629746Aexternal-prioritypatent/GB8629746D0/en
Application filed by Phoenix Petroleum ServicesfiledCriticalPhoenix Petroleum Services
Publication of NO883557D0publicationCriticalpatent/NO883557D0/en
Publication of NO883557LpublicationCriticalpatent/NO883557L/en