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 Jiri Ing Zemek, Kuniak Ludovit, Viera Ing KrajnakovafiledCriticalJiri Ing Zemek
Priority to CS843856ApriorityCriticalpatent/CS239826B1/en
Publication of CS385684A1publicationCriticalpatent/CS385684A1/en
Publication of CS239826B1publicationCriticalpatent/CS239826B1/en