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Application filed by Frantisek Tomsej, Josef Ing HorakafiledCriticalFrantisek Tomsej
Priority to CS857338ApriorityCriticalpatent/CS251427B1/en
Publication of CS733885A1publicationCriticalpatent/CS733885A1/en
Publication of CS251427B1publicationCriticalpatent/CS251427B1/en