The patent holder in the karaoke machine is Roberto del Rosario, that is in the Philippines. He developed the karaoke's sing-alongside procedure in 1975 and is also recognized as the sole holder of the patent for a karaoke program on the planet.[20] Afterwards developments[edit] Cakeshop: Though scaled-down than some of https://xn--939au0g6rj1ue34n9rrf5c.online/