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 Lukas, Pater MilanfiledCriticalJosef Lukas
Priority to CS893644ApriorityCriticalpatent/CS364489A1/cs
Publication of CS364489A1publicationCriticalpatent/CS364489A1/cs