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Application filed by Ruzicka Karel, Frantisek Ing ZdarsafiledCriticalRuzicka Karel
Priority to CS863775ApriorityCriticalpatent/CS254616B1/en
Publication of CS377586A1publicationCriticalpatent/CS377586A1/en
Publication of CS254616B1publicationCriticalpatent/CS254616B1/en