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 Josef Drazdil, Milos KotekfiledCriticalJosef Drazdil
Priority to CS107977ApriorityCriticalpatent/CS185274B1/cs
Publication of CS185274B1publicationCriticalpatent/CS185274B1/cs