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 Jaroslav Ing Csc Bezdek, Pavel Ing SvozilfiledCriticalJaroslav Ing Csc Bezdek
Priority to CS831998ApriorityCriticalpatent/CS242786B1/en
Publication of CS199883A1publicationCriticalpatent/CS199883A1/en
Publication of CS242786B1publicationCriticalpatent/CS242786B1/en