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 Krupp Koppers GmbhfiledCriticalKrupp Koppers Gmbh
Priority to FI922366ApriorityCriticalpatent/FI922366A/en
Publication of FI922366A0publicationCriticalpatent/FI922366A0/en
Publication of FI922366ApublicationCriticalpatent/FI922366A/en