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Application filed by Rudolf Huebscher, Vladimir Sirl, Vladislav StanekfiledCriticalRudolf Huebscher
Priority to CS849316ApriorityCriticalpatent/CS240750B1/en
Publication of CS931684A1publicationCriticalpatent/CS931684A1/en
Publication of CS240750B1publicationCriticalpatent/CS240750B1/en