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Priority claimed from GB888824000Aexternal-prioritypatent/GB8824000D0/en
Priority claimed from GB898916295Aexternal-prioritypatent/GB8916295D0/en
Application filed by Electricity Ass Services Ltd, Chamberlin & Hill PlcfiledCriticalElectricity Ass Services Ltd
Priority claimed from EP89310461Aexternal-prioritypatent/EP0366310B1/en
Application grantedgrantedCritical
Publication of ATE83956T1publicationCriticalpatent/ATE83956T1/en