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 Oerlikon Buehrle AgfiledCriticalOerlikon Buehrle Ag
Priority claimed from EP82111764Aexternal-prioritypatent/EP0085176B2/de
Application grantedgrantedCritical
Publication of ATE16363T1publicationCriticalpatent/ATE16363T1/de