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 DE19722241766external-prioritypatent/DE2241766C3/de
Application filed by Opti Holding AgfiledCriticalOpti Holding Ag
Publication of TR17569ApublicationCriticalpatent/TR17569A/tr