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Priority claimed from GB838313950Aexternal-prioritypatent/GB8313950D0/en
Priority claimed from GB838322497Aexternal-prioritypatent/GB8322497D0/en
Priority claimed from GB848406584Aexternal-prioritypatent/GB8406584D0/en
Application filed by James Brian ClarkefiledCriticalJames Brian Clarke
Priority claimed from PCT/GB1984/000171external-prioritypatent/WO1984004776A1/en
Application grantedgrantedCritical
Publication of ATE27033T1publicationCriticalpatent/ATE27033T1/de