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Application filed by Frantisek Doc Srbek, Sabata Stanislav, Josef Ing Matejka, Zuzana Ing KubikovafiledCriticalFrantisek Doc Srbek
Priority to CS844666ApriorityCriticalpatent/CS243837B1/en
Publication of CS466684A1publicationCriticalpatent/CS466684A1/en
Publication of CS243837B1publicationCriticalpatent/CS243837B1/en