BILL ETRA
Born in New York (United States), Lives & works in New York (United States) Very active in: 60s, 70s, 80s, 90s, 2000s, Current decade
More links:
http://www.etra.com/
Together with Steve Rutt he invented the Rutt-Etra Video Sinthetizer. Till today he is still working on newe video tools and patented many new inventions.