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Application filed by Friedrich W Prof Dr I Kloeppel, Jan Ing Malovec, Vesely VladimirfiledCriticalFriedrich W Prof Dr I Kloeppel
Priority to CS845617ApriorityCriticalpatent/CS239783B1/en
Publication of CS561784A1publicationCriticalpatent/CS561784A1/en
Publication of CS239783B1publicationCriticalpatent/CS239783B1/en