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Priority claimed from GB898904253Aexternal-prioritypatent/GB8904253D0/en
Priority claimed from GB898909320Aexternal-prioritypatent/GB8909320D0/en
Priority claimed from GB898909318Aexternal-prioritypatent/GB8909318D0/en
Application filed by Bicc PlcfiledCriticalBicc Plc
Priority claimed from EP19900301968external-prioritypatent/EP0384778B1/de
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Publication of ATE99449T1publicationCriticalpatent/ATE99449T1/de