Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Schweiz Holding AG
ABB AB
Original Assignee
Asea Brown Boveri AG Switzerland
Asea Brown Boveri AB
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 Boveri AG Switzerland, Asea Brown Boveri ABfiledCriticalAsea Brown Boveri AG Switzerland
Application grantedgrantedCritical
Publication of DE58904149D1publicationCriticalpatent/DE58904149D1/de