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Priority claimed from GB848413558Aexternal-prioritypatent/GB8413558D0/en
Priority claimed from GB848425174Aexternal-prioritypatent/GB8425174D0/en
Application filed by Paul Malcolm TrenchardfiledCriticalPaul Malcolm Trenchard
Priority claimed from PCT/GB1985/000226external-prioritypatent/WO1985005560A1/en
Application grantedgrantedCritical
Publication of ATE41607T1publicationCriticalpatent/ATE41607T1/en