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Priority claimed from US05/857,553external-prioritypatent/US4151122A/en
Publication of NO834446LpublicationCriticalpatent/NO834446L/en
Application filed by Phillips Petroleum CofiledCriticalPhillips Petroleum Co
Publication of NO155969BpublicationCriticalpatent/NO155969B/en
Publication of NO155969CpublicationCriticalpatent/NO155969C/en