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Publication date
Application filed by Pavel Ing FialkafiledCriticalPavel Ing Fialka
Priority to CS862731ApriorityCriticalpatent/CS256626B1/en
Priority to DD30159287Aprioritypatent/DD265770A3/en
Publication of CS273186A1publicationCriticalpatent/CS273186A1/en
Publication of CS256626B1publicationCriticalpatent/CS256626B1/en