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Priority claimed from US324909Aexternal-prioritypatent/US3865735A/en
Priority claimed from US00335995Aexternal-prioritypatent/US3847823A/en
Priority claimed from US355635Aexternal-prioritypatent/US3924681A/en
Application filed by Continental Oil CofiledCriticalContinental Oil Co
Publication of BR7400233D0publicationCriticalpatent/BR7400233D0/en