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Application filed by Karasek Otakar, Frantisek Ing Hadobas, Dudak Zdenek, Petrik StanislavfiledCriticalKarasek Otakar
Priority to CS828873ApriorityCriticalpatent/CS230916B1/en
Publication of CS887382A1publicationCriticalpatent/CS887382A1/en
Publication of CS230916B1publicationCriticalpatent/CS230916B1/en