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Application filed by Rudolf Selzer, Ladislav Chromy, Jan Zohora, Vojtech Ing ZimafiledCriticalRudolf Selzer
Priority to CS843436ApriorityCriticalpatent/CS242963B1/en
Publication of CS343684A1publicationCriticalpatent/CS343684A1/en
Publication of CS242963B1publicationCriticalpatent/CS242963B1/en