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 Ludek Voznica, Zak Pavel, Oldrich Ing Vaclavik, Miklenda JirifiledCriticalLudek Voznica
Priority to CS88494ApriorityCriticalpatent/CS266067B1/en
Publication of CS49488A1publicationCriticalpatent/CS49488A1/en
Publication of CS266067B1publicationCriticalpatent/CS266067B1/en