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Application filed by Frantisek Ing Halmo, Dagmar Ing StresinovafiledCriticalFrantisek Ing Halmo
Priority to CS848622ApriorityCriticalpatent/CS242188B1/en
Publication of CS862284A1publicationCriticalpatent/CS862284A1/en
Publication of CS242188B1publicationCriticalpatent/CS242188B1/en