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 Rudolf Bies, Vincent SimofiledCriticalRudolf Bies
Priority to CS269977ApriorityCriticalpatent/CS194398B1/en
Publication of CS194398B1publicationCriticalpatent/CS194398B1/en