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Application filed by Zdenek Vodak, Frantisek Krsnak, Jiri Kveton, Stanislav Simek, Ludvik Bechtold, Milan Morak, Eduard Marval, Josef Slechta, Josef SolcfiledCriticalZdenek Vodak
Priority to CS227874ApriorityCriticalpatent/CS187205B1/cs
Publication of CS187205B1publicationCriticalpatent/CS187205B1/cs