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Application filed by Jiri Helinger, Barvinek Frantisek, Imrysek JanfiledCriticalJiri Helinger
Priority to CS845444ApriorityCriticalpatent/CS242750B1/cs
Publication of CS544484A1publicationCriticalpatent/CS544484A1/cs
Publication of CS242750B1publicationCriticalpatent/CS242750B1/cs