The patent holder from the karaoke equipment is Roberto del Rosario, that's in the Philippines. He formulated the karaoke's sing-along procedure in 1975 and is particularly recognized as the sole holder of the patent for just a karaoke procedure on the earth.[20] Afterwards developments[edit] If you're finding a spot to https://xn--939au0g6rj1ue34n9rrf5c.online/