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 Frantisek MoskalafiledCriticalFrantisek Moskala
Priority to CS858562ApriorityCriticalpatent/CS255978B1/en
Publication of CS856285A1publicationCriticalpatent/CS856285A1/en
Publication of CS255978B1publicationCriticalpatent/CS255978B1/en