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Application filed by Karel Voda, Talach Jaroslav, Antonin Ing HolasfiledCriticalKarel Voda
Priority to CS872134ApriorityCriticalpatent/CS261922B1/en
Publication of CS213487A1publicationCriticalpatent/CS213487A1/en
Publication of CS261922B1publicationCriticalpatent/CS261922B1/en