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Priority claimed from US07/233,063external-prioritypatent/US4939311A/en
Priority claimed from US07/382,477external-prioritypatent/US4971940A/en
Application filed by Amoco CorpfiledCriticalAmoco Corp
Publication of NO901647D0publicationCriticalpatent/NO901647D0/no
Publication of NO901647LpublicationCriticalpatent/NO901647L/no