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Application filed by Vaclav Mares, Penkava Josef, Stransky Oldrich, Vaclav Ing JanousekfiledCriticalVaclav Mares
Priority to CS884541ApriorityCriticalpatent/CS269370B1/cs
Publication of CS454188A1publicationCriticalpatent/CS454188A1/cs
Publication of CS269370B1publicationCriticalpatent/CS269370B1/cs