?? ?? ?? ?? ????? ?? ???? ?? ?? ?????. ?? ?? ?? ??? ?? ??? ?? ???? ????, ???? ???? ????? ??? ???? ?????, ? ? ? ?? {???? ???|??? ??? ???? ?? ?? ???? ????. ????? ??? ?????? ??? ?? ???? ???? ??? ??? ?? ??? ???? ?? ???? ?? ???? ???? ????? ??? ?? ??? ??? ??? ??, ??? ??? ???? ???? ??? ? ? ????. ????? ??? ?????? ??? ??, ???? ??? ??? ???? ?? ? ?? ?

??? ??? ??? ?????. ?? ??????? ??? ??? ??? ??? ??? ??? ??? ?? ??? ?? ??? ? ?? ?? ??? ???? ?? ?? ??? ??? ? ??? ???? ????? ????. The patent holder of your karaoke equipment is Roberto del Rosario, who is with the Philippines. He developed the karaoke's sing-together technique in 1975 and is also acknowledged as the sole holder of the patent to get a

?? ???? ??? ??? ??? ????? ??? ??? ????? ??? ??? ??. ???? ?? ??? ????? ?? ???? ? ??????? ????? ??? ???? ?? ?? ???? ? ?? ?? ? ??. ???? ??? ? ????? ?? ?? ?? ????? ??? ??? ???? ?? ????? ??? ?? ?? ??? ????? ???? ?? ? ??? ???? ??? ?? ?? ???? ?? ??? ???. ?? ??? ?????? ????? ??? ???? ???? ??? ??? ?? ???? ???? ????. ??, ?? ??: ??? ?? ???, ??? ?? ??? ??