When did the founder of Bang & Olufsen die?
David Lewis (designer): David Whitfield Lewis (19 February 1939 – 8 November 2011) was an industrial designer. Bang &amp; Olufsen:  It was founded in 1925 by and Svend Olufsen, who designed a radio to work with alternating current, a product of significance at a time when most radios were still running on batteries.
8 November 2011