The patent holder of the karaoke machine is Roberto del Rosario, that is with the Philippines. He created the karaoke's sing-along system in 1975 and is particularly regarded as the sole holder of a patent for your karaoke system in the world.[twenty] Later developments[edit] Numerous establishments provide karaoke over a https://xn--939au0g6rj1ue34n9rrf5c.online/