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 Petr Ing Korcyzynski, Borivoj Ing Hranos, Milan Ing Licka, Ptacek MilanfiledCriticalPetr Ing Korcyzynski
Priority to CS872524ApriorityCriticalpatent/CS260721B1/en
Publication of CS252487A1publicationCriticalpatent/CS252487A1/en
Publication of CS260721B1publicationCriticalpatent/CS260721B1/en