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 filedfiledCritical
Priority to DD16243272ApriorityCriticalpatent/DD96123A1/xx
Priority to DE19732303458prioritypatent/DE2303458A1/de
Priority to FR7306515Aprioritypatent/FR2180658B3/fr
Publication of DD96123A1publicationCriticalpatent/DD96123A1/xx