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 Csc Duchek, Kacin Jan, Miloslava Ing Ottova, Ludmila Ing Herdova, Sebek Vladimir, Miloslav Ing Hladecek, Zdenek Ing Csc EngelthalerfiledCriticalPetr Ing Csc Duchek
Priority to CS872124ApriorityCriticalpatent/CS259698B1/en
Publication of CS212487A1publicationCriticalpatent/CS212487A1/en
Publication of CS259698B1publicationCriticalpatent/CS259698B1/en