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Application filed by Bohumil Ing Simicek, Karel Ing MichalekfiledCriticalBohumil Ing Simicek
Priority to CS862682ApriorityCriticalpatent/CS255932B1/en
Publication of CS268286A1publicationCriticalpatent/CS268286A1/en
Publication of CS255932B1publicationCriticalpatent/CS255932B1/en