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Application filed by Vaclav Jenista, Richard Karasek, Oldrich Petr, Pospichal Zdenek, Rudolf Ing Broz, Jan Frank, Frantisek Novak, Kvetoslav VyjidacekfiledCriticalVaclav Jenista
Priority to CS878391ApriorityCriticalpatent/CS268966B1/cs
Publication of CS839187A1publicationCriticalpatent/CS839187A1/cs
Publication of CS268966B1publicationCriticalpatent/CS268966B1/cs