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Application filed by Dvoracek Jan, Miroslav Ing KrejcifiledCriticalDvoracek Jan
Priority to CS868427ApriorityCriticalpatent/CS260519B1/en
Priority to DD30878187Aprioritypatent/DD274742A3/en
Publication of CS842786A1publicationCriticalpatent/CS842786A1/en
Publication of CS260519B1publicationCriticalpatent/CS260519B1/en