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Application filed by Izidor Mucka, Jan Ing Skulec, Pesek MiroslavfiledCriticalIzidor Mucka
Priority to CS873584ApriorityCriticalpatent/CS265778B1/en
Publication of CS358487A1publicationCriticalpatent/CS358487A1/en
Publication of CS265778B1publicationCriticalpatent/CS265778B1/en