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Application filed by Moravek Petr, Matuska Bohuslav, Rudolf Pfeifer, Jiri HorakfiledCriticalMoravek Petr
Priority to CS863461ApriorityCriticalpatent/CS259741B1/en
Publication of CS346186A1publicationCriticalpatent/CS346186A1/en
Publication of CS259741B1publicationCriticalpatent/CS259741B1/en