Tuesday, July 13, 2010
Roberto Del Rosario
Roberto Del Rosario. Filipino Inventor Roberto del Rosario is the president of the Trebel Music Corporation and the inventor of the Karaoke Sing Along System in 1975. Roberto del Rosario has patented more than twenty inventions making him one of the most prolific Filipino inventor.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment