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Application filed by Coufal Rajmund, Frantisek Ing Martykan, Josef Ing Csc Polasek, Josef Stanglica, Milan Balajka, Ivan BrhelfiledCriticalCoufal Rajmund
Priority to CS872143ApriorityCriticalpatent/CS265118B1/en
Publication of CS214387A1publicationCriticalpatent/CS214387A1/en
Publication of CS265118B1publicationCriticalpatent/CS265118B1/en