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Publication date
Priority claimed from GB898901823Aexternal-prioritypatent/GB8901823D0/en
Priority claimed from GB898901756Aexternal-prioritypatent/GB8901756D0/en
Priority claimed from PCT/GB1990/000120external-prioritypatent/WO1990009073A1/en
Application filed by British Telecomm, Ferranti Creditphone, Plessey Telecomm, Mercury Communications, Orbitel Mobile Communications, Shaye Communications Ltd, Phonepoint Ltd, Stc PlcfiledCriticalBritish Telecomm
Publication of NO904194D0publicationCriticalpatent/NO904194D0/no
Publication of NO904194LpublicationCriticalpatent/NO904194L/no