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 Ing Janicek, R Alois Ing Uhl, Zdenka Arch Manakova, Safek Miroslav, Ludmila SafkovafiledCriticalFrantisek Ing Janicek
Priority to CS828083ApriorityCriticalpatent/CS230780B1/en
Publication of CS808382A1publicationCriticalpatent/CS808382A1/en
Publication of CS230780B1publicationCriticalpatent/CS230780B1/en