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 Zdenek Ing Csc Soucek, Lubomir Oing Valouch, Dvorak Jiri, Vondrak Jiri, Karel SvobodafiledCriticalZdenek Ing Csc Soucek
Priority to CS856788ApriorityCriticalpatent/CS251835B1/en
Publication of CS678885A1publicationCriticalpatent/CS678885A1/en
Publication of CS251835B1publicationCriticalpatent/CS251835B1/en