강남가라오케 Unlike Inoue, del Rosario patented the "Sing-Alongside System" (issued in 1983 and 1986) which is recognized as the only holder of the patent to get a karaoke process on earth right after he received a patent infringement situation against a Chinese firm during the 1990s. A fundamental karaoke equipment https://warrenq998nfw9.blogitright.com/profile