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Application filed by Ladislav Talasa, Podesva Milan, Augustin Ing MacekfiledCriticalLadislav Talasa
Priority to CS833470ApriorityCriticalpatent/CS233263B1/en
Publication of CS347083A1publicationCriticalpatent/CS347083A1/en
Publication of CS233263B1publicationCriticalpatent/CS233263B1/en