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 Vlastimil Ing Kaspar, Dvorak JoseffiledCriticalVlastimil Ing Kaspar
Priority to CS865290ApriorityCriticalpatent/CS254400B1/en
Publication of CS529086A1publicationCriticalpatent/CS529086A1/en
Publication of CS254400B1publicationCriticalpatent/CS254400B1/en