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 DE19792930946external-prioritypatent/DE2930946B2/de
Application filed by Krupp Koppers GmbhfiledCriticalKrupp Koppers Gmbh
Publication of MX6825EpublicationCriticalpatent/MX6825E/es