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Application filed by Zdenkek Ing Csc Burival, Vojtech Ing Pilka, Emil Ing Vratnicek, Ivo KunzfiledCriticalZdenkek Ing Csc Burival
Priority to CS832821ApriorityCriticalpatent/CS237059B1/en
Publication of CS282183A1publicationCriticalpatent/CS282183A1/en
Publication of CS237059B1publicationCriticalpatent/CS237059B1/en