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Publication date
Priority claimed from US07/225,711external-prioritypatent/US4912935A/en
Priority claimed from PCT/GB1988/000578external-prioritypatent/WO1989000668A1/en
Application filed by Sunwell Eng Co Ltd, Orange John R SfiledCriticalSunwell Eng Co Ltd
Publication of NO900232D0publicationCriticalpatent/NO900232D0/en
Publication of NO900232LpublicationCriticalpatent/NO900232L/en
Publication of NO172558BpublicationCriticalpatent/NO172558B/en
Publication of NO172558CpublicationCriticalpatent/NO172558C/en