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Application filed by Petr Akad Arch Ing TucnyfiledCriticalPetr Akad Arch Ing Tucny
Priority to CS838145ApriorityCriticalpatent/CS243621B1/en
Publication of CS814583A1publicationCriticalpatent/CS814583A1/en
Publication of CS243621B1publicationCriticalpatent/CS243621B1/en