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 Miroslav Ing FranekfiledCriticalMiroslav Ing Franek
Priority to CS832153ApriorityCriticalpatent/CS239621B1/en
Publication of CS215383A1publicationCriticalpatent/CS215383A1/en
Publication of CS239621B1publicationCriticalpatent/CS239621B1/en