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 GB888806111Aexternal-prioritypatent/GB8806111D0/en
Application filed by British TelecommfiledCriticalBritish Telecomm
Publication of NO904014D0publicationCriticalpatent/NO904014D0/no
Publication of NO904014LpublicationCriticalpatent/NO904014L/no