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Application filed by Kucera Frantisek, Milan Ing Houdek, Alexander Ing Sarkady, Jan ProkopfiledCriticalKucera Frantisek
Priority to CS846920ApriorityCriticalpatent/CS252410B1/en
Publication of CS692084A1publicationCriticalpatent/CS692084A1/en
Publication of CS252410B1publicationCriticalpatent/CS252410B1/en