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 DD18309474ApriorityCriticalpatent/DD117653B1/de
Priority to HU75IA00000742Aprioritypatent/HU172664B/hu
Priority to CS764075Aprioritypatent/CS193161B1/cs
Publication of DD117653A1publicationCriticalpatent/DD117653A1/xx
Publication of DD117653B1publicationCriticalpatent/DD117653B1/de