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Application filed by Vojtech Ing Neuzil, Stefan Balla, Julius SchaefferfiledCriticalVojtech Ing Neuzil
Priority to CS835024ApriorityCriticalpatent/CS232140B1/en
Publication of CS502483A1publicationCriticalpatent/CS502483A1/en
Publication of CS232140B1publicationCriticalpatent/CS232140B1/en