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Application filed by Jaroslav Sladecek, Hromek Frantisek, Petros Jaroslav, Frantisek Ing Sotola, Jasinsky Zdenek, Antonin Ing StivarfiledCriticalJaroslav Sladecek
Priority to CS882288ApriorityCriticalpatent/CS272392B1/en
Publication of CS228888A1publicationCriticalpatent/CS228888A1/en
Publication of CS272392B1publicationCriticalpatent/CS272392B1/en