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 Havranek Zdenek, Stejskal Alois, Miroslav Ing Stepanek, Jan Hrdina, Jaroslav Slingr, Frantisek Cada, Borovcova Zelmira, Frantisek Ferkl, Eduard Barta, Jarmila SteklikovafiledCriticalHavranek Zdenek
Priority to CS856040ApriorityCriticalpatent/CS251419B1/en
Publication of CS604085A1publicationCriticalpatent/CS604085A1/en
Publication of CS251419B1publicationCriticalpatent/CS251419B1/en