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Application filed by Josef Ing Hosek, Lubomir Macek, Vaclav NovotnyfiledCriticalJosef Ing Hosek
Priority to CS845566ApriorityCriticalpatent/CS240924B1/en
Publication of CS556684A1publicationCriticalpatent/CS556684A1/en
Publication of CS240924B1publicationCriticalpatent/CS240924B1/en