??, ???, ???, ??, ??, ????, ????? ?? ?? ?? ? ??? ????. ?? ?? ??? ???? ?? ??? ???? ??? ???? ?? ? ??? ????. The patent holder of your karaoke equipment is Roberto del Rosario, who's through the Philippines. He produced the sky ???? karaoke's sing-together method in 1975 and is particularly acknowledged as the only holder of a patent for the karaoke

??? ??(???,???,????,... : ??? ?? ??????/??????/????/?????/??????/?????/??????/??????/?? ???? ? ????? ?? ???? ??? ??? ?????. ???? ??? ?? ??? ????. ??? ??? ?? ??? ?? ??? ????? ????? ?????? ?????. ??? ??? ??? ??? ?? ? ??? ???? ?? ??? ??? ??????. ??? ??? ??? ? ? ??? ? ??? ?????. ???? ??? ?? ?? ?? ?. ?? ???? ??? ?? ????. ? ??? ????? ???. ??? ?? ????