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Application filed by Ulbert Karel, Jaroslav Ing Furman, Vaclav Burianek, Jaroslav Ing PolivkafiledCriticalUlbert Karel
Priority to CS851276ApriorityCriticalpatent/CS254284B1/en
Publication of CS127685A1publicationCriticalpatent/CS127685A1/en
Publication of CS254284B1publicationCriticalpatent/CS254284B1/en