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 Hartman Jan, Frantisek Ing Danek, Frantisek Ing Lucny, Tomas Ing StavjanikfiledCriticalHartman Jan
Priority to CS873081ApriorityCriticalpatent/CS260084B1/en
Publication of CS308187A1publicationCriticalpatent/CS308187A1/en
Publication of CS260084B1publicationCriticalpatent/CS260084B1/en