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Application filed by Gustav Svanda, Josef Dr Csc Habanec, Tomas Ing FukatkofiledCriticalGustav Svanda
Priority to CS858658ApriorityCriticalpatent/CS255981B1/en
Publication of CS865885A1publicationCriticalpatent/CS865885A1/en
Publication of CS255981B1publicationCriticalpatent/CS255981B1/en