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Priority claimed from GB9410012Aexternal-prioritypatent/GB9410012D0/en
Application filed by Petroleum Eng ServicesfiledCriticalPetroleum Eng Services
Priority to SG1995000481ApriorityCriticalpatent/SG30384A1/en
Publication of SG30384A1publicationCriticalpatent/SG30384A1/en