When was the Scottish-born scientist died after whose invention "Kōbushō" had started an effort to make telephone receivers?
Alexander Graham Bell Alexander Graham Bell (March 3, 1847 – August 2, 1922) was a Scottish-born scientist, inventor, engineer, and innovator who is credited with patenting the first practical telephone and founding the American Telephone and Telegraph Company (AT&T) in 1885.
John Robert Mills John Robert Mills () (12 November 1916 – 6 May 1998), was a British physicist and scientific expert who played an important role in the development of Radar and the defence of Britain in World War II. After the war he continued his career working for various British government research establishments on a variety of projects until his retirement in 1977.