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 Jancik Fedir, Jaroslav Ing Martinek, Kakac Bohumil, Jana Pospisilova, Ljuba Rndr Svobodova, Trojanek Jan, Ruzena Ing Csc Mickova, Sturc Antonin, Krepelka Jiri, Ferenc Milan, Milan Ing Hruby, Ladislav StrojilfiledCriticalJancik Fedir
Priority to CS88564ApriorityCriticalpatent/CS272351B1/en
Publication of CS56488A1publicationCriticalpatent/CS56488A1/en
Publication of CS272351B1publicationCriticalpatent/CS272351B1/en