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Application filed by Hlavacek Ivo, Jiri KratochvilfiledCriticalHlavacek Ivo
Priority to CS86808ApriorityCriticalpatent/CS265456B1/en
Publication of CS80886A1publicationCriticalpatent/CS80886A1/en
Publication of CS265456B1publicationCriticalpatent/CS265456B1/en