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Priority claimed from GB08329604Aexternal-prioritypatent/GB2151219A/en
Priority claimed from GB848422854Aexternal-prioritypatent/GB8422854D0/en
Priority claimed from PCT/GB1984/000380external-prioritypatent/WO1985001946A1/en
Application filed by Perchem LtdfiledCriticalPerchem Ltd
Publication of NO852704LpublicationCriticalpatent/NO852704L/en
Publication of NO167398BpublicationCriticalpatent/NO167398B/en
Publication of NO167398CpublicationCriticalpatent/NO167398C/en