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Application filed by Zdenek Ing Csc TischerfiledCriticalZdenek Ing Csc Tischer
Priority to CS862441ApriorityCriticalpatent/CS257222B1/en
Publication of CS244186A1publicationCriticalpatent/CS244186A1/en
Publication of CS257222B1publicationCriticalpatent/CS257222B1/en