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Priority claimed from GB888825771Aexternal-prioritypatent/GB8825771D0/en
Priority claimed from GB898903447Aexternal-prioritypatent/GB8903447D0/en
Priority claimed from GB898913594Aexternal-prioritypatent/GB8913594D0/en
Application filed by James Bain NoblefiledCriticalJames Bain Noble
Priority claimed from PCT/GB1989/001318external-prioritypatent/WO1990005235A1/en
Application grantedgrantedCritical
Publication of ATE103663T1publicationCriticalpatent/ATE103663T1/en