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Application filed by Jozef Ing Baca, Rudolf Ing Oravec, Marek BacafiledCriticalJozef Ing Baca
Priority to CS874387ApriorityCriticalpatent/CS262782B1/en
Publication of CS438787A1publicationCriticalpatent/CS438787A1/en
Publication of CS262782B1publicationCriticalpatent/CS262782B1/en