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 Helena Ing Pavelkova, Josef Hublar, Jaromir Ing Csc Ludvik, Josef Ing Csc Tkac, Bohumil Skutek, Ivan Ing KreidlfiledCriticalHelena Ing Pavelkova
Priority to CS882025ApriorityCriticalpatent/CS267015B1/en
Publication of CS202588A1publicationCriticalpatent/CS202588A1/en
Publication of CS267015B1publicationCriticalpatent/CS267015B1/en