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Application filed by Karel Doc Ing Csc HemzalfiledCriticalKarel Doc Ing Csc Hemzal
Priority to CS841969ApriorityCriticalpatent/CS242939B1/en
Publication of CS196984A1publicationCriticalpatent/CS196984A1/en
Publication of CS242939B1publicationCriticalpatent/CS242939B1/en