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Application filed by Jaromil Krajca, Premysl Ing OcelkafiledCriticalJaromil Krajca
Priority to CS848639ApriorityCriticalpatent/CS242147B1/cs
Publication of CS863984A1publicationCriticalpatent/CS863984A1/cs
Publication of CS242147B1publicationCriticalpatent/CS242147B1/cs