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Application filed by Hajek Karel, Kratky Bohumil, Ditrych Zdenek, Ruzickova Jirina, Zdenek Ing Csc Vasitek, Braun Stanislav, Jiri Dipl Tech Trnka, Drobny Michal, Suran PavolfiledCriticalHajek Karel
Priority to CS838210ApriorityCriticalpatent/CS245608B1/en
Publication of CS821083A1publicationCriticalpatent/CS821083A1/en
Publication of CS245608B1publicationCriticalpatent/CS245608B1/en