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Application filed by Alois Rosenberg, Jan Ing Kostal, Milan Ing UxafiledCriticalAlois Rosenberg
Priority to CS842381ApriorityCriticalpatent/CS242373B1/cs
Publication of CS238184A1publicationCriticalpatent/CS238184A1/cs
Publication of CS242373B1publicationCriticalpatent/CS242373B1/cs