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Application filed by Cabicar Rudolf, Hudec Frantisek, Cerveny Jindrich, Rocak JaroslavfiledCriticalCabicar Rudolf
Priority to CS848226ApriorityCriticalpatent/CS243264B1/en
Publication of CS822684A1publicationCriticalpatent/CS822684A1/en
Publication of CS243264B1publicationCriticalpatent/CS243264B1/en