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Application filed by Josef Malina, Miroslav Pechota, Miloslav Novacek, Jaroslav Hlinsko SvabfiledCriticalJosef Malina
Priority to CS856921ApriorityCriticalpatent/CS254077B1/en
Publication of CS692185A1publicationCriticalpatent/CS692185A1/en
Publication of CS254077B1publicationCriticalpatent/CS254077B1/en