Question: When was the Scottish-born scientist died after whose invention "Kōbushō" had started an effort to make telephone receivers?
Sentence (from "Oki Kibatarō"): Oki Kibatarō (沖 牙太郎 , 1848–1906) was an engineer formerly employed at a Japanese Ministry of Industry ("Kōbushō") factory.
Relevant evidence: No