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Application filed by Imrich Ing Jencik, Mirek TeodorfiledCriticalImrich Ing Jencik
Priority to CS874525ApriorityCriticalpatent/CS265314B1/en
Publication of CS452587A1publicationCriticalpatent/CS452587A1/en
Publication of CS265314B1publicationCriticalpatent/CS265314B1/en