The patent holder on the karaoke equipment is Roberto del Rosario, that is from the Philippines. He made the karaoke's sing-alongside procedure in 1975 and is particularly recognized as the sole holder of the patent for your karaoke method on the earth.[20] Later developments[edit] From the brilliant lights of Gangnam’s https://xn--939au0g6rj1ue34n9rrf5c.online/