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 Alois Laznicka, Miloslav Sevcik, Pavel KolinekfiledCriticalAlois Laznicka
Priority to CS863476ApriorityCriticalpatent/CS186613B1/cs
Publication of CS186613B1publicationCriticalpatent/CS186613B1/cs