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Priority claimed from US05/840,083external-prioritypatent/US4199484A/en
Application filed by Halliburton CofiledCriticalHalliburton Co
Priority claimed from IE177278Aexternal-prioritypatent/IE781772L/en
Publication of IE822463LpublicationCriticalpatent/IE822463L/en
Publication of IE47680B1publicationCriticalpatent/IE47680B1/en