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Application filed by Ladislav Doc Ing Csc Ondrej, Vaclav ProsekfiledCriticalLadislav Doc Ing Csc Ondrej
Priority to CS85467ApriorityCriticalpatent/CS243249B1/en
Publication of CS46785A1publicationCriticalpatent/CS46785A1/en
Publication of CS243249B1publicationCriticalpatent/CS243249B1/en