When was the Scottish-born scientist died after whose invention "Kōbushō" had started an effort to make telephone receivers?
Oki Kibatarō Oki Kibatarō (沖 牙太郎 , 1848–1906) was an engineer formerly employed at a Japanese Ministry of Industry ("Kōbushō") factory. In 1877, only a year after Alexander Graham Bell's invention, "Kōbushō" had started an effort to make telephone receivers by reverse engineering and Oki was in the team that came up with the first prototype.
Wallace Rupert Turnbull Wallace Rupert Turnbull (October 16, 1870 - November 24, 1954) was a New Brunswick engineer and inventor, born on October 16, 1870 in Saint John, New Brunswick. The Saint John Airport was briefly named after him. He died November 24, 1954. He was inducted in the Canada's Aviation Hall of Fame in 1977.