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 Jan Ing Csc DusekfiledCriticalJan Ing Csc Dusek
Priority to CS842931ApriorityCriticalpatent/CS239083B1/en
Publication of CS293184A1publicationCriticalpatent/CS293184A1/en
Publication of CS239083B1publicationCriticalpatent/CS239083B1/en