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Application filed by Karol Ing Waczlaw, Jozef Ing SingerfiledCriticalKarol Ing Waczlaw
Priority to CS832598ApriorityCriticalpatent/CS260151B1/en
Publication of CS259883A1publicationCriticalpatent/CS259883A1/en
Publication of CS260151B1publicationCriticalpatent/CS260151B1/en