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Priority claimed from GB858510538Aexternal-prioritypatent/GB8510538D0/en
Application filed by British HydromechanicsfiledCriticalBritish Hydromechanics
Publication of NO865292LpublicationCriticalpatent/NO865292L/no
Publication of NO172970BpublicationCriticalpatent/NO172970B/no
Publication of NO172970CpublicationCriticalpatent/NO172970C/no