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Application filed by Menrich Ing Urbanek, Jozef ZvarikfiledCriticalMenrich Ing Urbanek
Priority to CS861510ApriorityCriticalpatent/CS255326B1/cs
Publication of CS151086A1publicationCriticalpatent/CS151086A1/cs
Publication of CS255326B1publicationCriticalpatent/CS255326B1/cs