クレジット表記
Universal Images Group / サイネットフォト
タイトル
Early Bell telephone and terminal panel, 1877.
キーワード
Alexander Graham Bell (1847-1922) was born in Edinburgh, Scotland but emigrated to the United States, settling in Boston where began his career as an inventor. On 7th March 1876, he secured a patent for an electrical speech machine, which he called the telephone. After showing the instrument at the American Centennial Exhibition in Philadelphia in June, news of Bell