ELECTRONIC SIREN AND RADIO WITH EXTENDED RANGE AND INCREASED AUDIBILITY OF THE EMITTED AUDIO SIGNALS von BELEJ, Ján, SOKOL, Miroslav, VILIM, Michal, DOLINSKÝ, Pavol, MAR ÁK, Peter, SAJKO, Miroslav, BLANÁR, Franti ek, KOPÍK, Martin, KOTOS, Peter, OCEÁK, Attila, LENHARDT, Peter, FEK, Martin, KLENOVI, Patrik, GÁ PÁR, Tomá, I MÁR, Martin, ECH, Marek, GA PAR, Stanislav, AK, Andrej

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