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 Karel Prochazka, Novak Jan, Haumer Jaroslav, Moravcova Zelmira, Vanura Petr, Miloslav Tejnecky, Fidler Josef, Ctirad Rndr Csc Konetny, Gala Jan, Vanek Karel, Zdenek DrizalfiledCriticalKarel Prochazka
Priority to CS862334ApriorityCriticalpatent/CS257964B1/en
Publication of CS233486A1publicationCriticalpatent/CS233486A1/en
Publication of CS257964B1publicationCriticalpatent/CS257964B1/en