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Application filed by Jan Jakes, Jares Frantisek, Oldrich Rybar, Exner Milan, Augustin FreyfiledCriticalJan Jakes
Priority to CS845753ApriorityCriticalpatent/CS245173B1/en
Publication of CS575384A1publicationCriticalpatent/CS575384A1/en
Publication of CS245173B1publicationCriticalpatent/CS245173B1/en