The patent holder in the karaoke equipment is Roberto del Rosario, who's within the Philippines. He produced the karaoke's sing-alongside procedure in 1975 and it is acknowledged as the only holder of the patent to get a karaoke procedure in the world.[20] Afterwards developments[edit] Karaoke before long unfold to the https://xn--939au0g6rj1ue34n9rrf5c.online/