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 CH2128/88Aexternal-prioritypatent/CH675090A5/de
Application filed by Asea Brown BoverifiledCriticalAsea Brown Boveri
Application grantedgrantedCritical
Publication of ATE88393T1publicationCriticalpatent/ATE88393T1/de