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.
László Bíró László József Bíró (] ) or Ladislao José Biro (born as László József Schweiger, 29 September 1899 – 24 October 1985) was a Argentinian-Hungarian inventor, who patented the first commercially successful modern ballpoint pen.