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Application filed by Karel Ing Kakala, Vladislav Pospisil, Drahomira Ing TrubacikovafiledCriticalKarel Ing Kakala
Priority to CS871254ApriorityCriticalpatent/CS261164B1/en
Publication of CS125487A1publicationCriticalpatent/CS125487A1/en
Publication of CS261164B1publicationCriticalpatent/CS261164B1/en