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
Application filed by Marconi Co LtdfiledCriticalMarconi Co Ltd
Priority claimed from EP82302630Aexternal-prioritypatent/EP0066998B1/de
Application grantedgrantedCritical
Publication of ATE12703T1publicationCriticalpatent/ATE12703T1/de