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Application filed by Jana Ing Vavrouskova, Vladimir Javurek, Josef Ing Gala, Frantisek PolacekfiledCriticalJana Ing Vavrouskova
Priority to CS847979ApriorityCriticalpatent/CS247421B1/en
Publication of CS797984A1publicationCriticalpatent/CS797984A1/en
Publication of CS247421B1publicationCriticalpatent/CS247421B1/en