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 Novak, Dagmar ZemanovafiledCriticalJosef Novak
Priority to CS219677ApriorityCriticalpatent/CS188677B1/en
Publication of CS188677B1publicationCriticalpatent/CS188677B1/en