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Application filed by Sten Leska, Alexander Poor, Karol Ing Ruzicka, Peter Ig HauskrechtfiledCriticalSten Leska
Priority to CS86875ApriorityCriticalpatent/CS256168B1/en
Publication of CS87586A1publicationCriticalpatent/CS87586A1/en
Publication of CS256168B1publicationCriticalpatent/CS256168B1/en