Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB898901756Aexternal-prioritypatent/GB8901756D0/en
Priority claimed from GB898901823Aexternal-prioritypatent/GB8901823D0/en
Priority claimed from PCT/GB1990/000118external-prioritypatent/WO1990009072A1/en
Application filed by British Telecomm, Ferranti Creditphone, Plessey Telecom, Mercury Communications, Orbitel Mobile Communications, Shaye Communications Ltd, Phonepoint Ltd, Stc PlcfiledCriticalBritish Telecomm
Publication of NO904193D0publicationCriticalpatent/NO904193D0/no
Publication of NO904193LpublicationCriticalpatent/NO904193L/no