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Application filed by Miloslav Ing Vorel, Seidl Karel, Frantisek Ing Csc FenikfiledCriticalMiloslav Ing Vorel
Priority to CS834355ApriorityCriticalpatent/CS232522B1/en
Publication of CS435583A1publicationCriticalpatent/CS435583A1/en
Publication of CS232522B1publicationCriticalpatent/CS232522B1/en