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Application filed by Emeljan I Liscisin, Marija I OnufrijcukfiledCriticalEmeljan I Liscisin
Priority to CS817251ApriorityCriticalpatent/CS237248B1/cs
Publication of CS725181A1publicationCriticalpatent/CS725181A1/cs
Publication of CS237248B1publicationCriticalpatent/CS237248B1/cs