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 Prusek Jaroslav, Ivan Ing Kokoska, Ivan JirovskyfiledCriticalPrusek Jaroslav
Priority to CS877877ApriorityCriticalpatent/CS265670B1/en
Publication of CS787787A1publicationCriticalpatent/CS787787A1/en
Publication of CS265670B1publicationCriticalpatent/CS265670B1/en