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Application filed by Eduard Ing Trnik, Majercik MichalfiledCriticalEduard Ing Trnik
Priority to CS877352ApriorityCriticalpatent/CS267196B1/en
Publication of CS735287A1publicationCriticalpatent/CS735287A1/en
Publication of CS267196B1publicationCriticalpatent/CS267196B1/en