The patent holder with the karaoke machine is Roberto del Rosario, that's from the Philippines. He made the karaoke's sing-alongside technique in 1975 which is acknowledged as the only holder of a patent for the karaoke technique on this planet.[twenty] Afterwards developments[edit] Wish to video-empower far more meeting rooms? We’ve https://xn--939au0g6rj1ue34n9rrf5c.online/