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 Zeman Jiri, Miroslav SmehlikfiledCriticalZeman Jiri
Priority to CS876389ApriorityCriticalpatent/CS264379B1/en
Publication of CS638987A1publicationCriticalpatent/CS638987A1/en
Publication of CS264379B1publicationCriticalpatent/CS264379B1/en