The patent holder with the karaoke device is Roberto del Rosario, who's in the Philippines. He created the karaoke's sing-alongside procedure in 1975 which is regarded as the only real holder of a patent for any karaoke technique on earth.[twenty] Later on developments[edit] Perched up over the 4th floor, this https://xn--939au0g6rj1ue34n9rrf5c.online/