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 Tolnai, Jozef Balla, Michal Marko, Jozef Skrabak, Ludovit TibenskyfiledCriticalRudolf Tolnai
Priority to CS68677ApriorityCriticalpatent/CS185740B1/cs
Publication of CS185740B1publicationCriticalpatent/CS185740B1/cs