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Application filed by Zak Bohumil, Stanek Jan, Marie Rndr Ledvinova, Capek Antonin, Miloslav Ing Cerny, Karel Dr Csc JezekfiledCriticalZak Bohumil
Priority to CS832231ApriorityCriticalpatent/CS231862B1/en
Publication of CS223183A1publicationCriticalpatent/CS223183A1/en
Publication of CS231862B1publicationCriticalpatent/CS231862B1/en