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 Dominik Ing Csc Kupcak, Josef Ing KrizfiledCriticalDominik Ing Csc Kupcak
Priority to CS842964ApriorityCriticalpatent/CS252404B1/en
Publication of CS296484A1publicationCriticalpatent/CS296484A1/en
Publication of CS252404B1publicationCriticalpatent/CS252404B1/en