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 GB838305858Aexternal-prioritypatent/GB8305858D0/en
Application filed by Indep Broadcasting AuthorityfiledCriticalIndep Broadcasting Authority
Application grantedgrantedCritical
Publication of ATE32008T1publicationCriticalpatent/ATE32008T1/en