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Alexander Graham Bell ( / ˈɡreɪ.əm /, born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885.
Nov 9, 2009 · Alexander Graham Bell, best known for his invention of the telephone, revolutionized communication as we know it. His interest in sound technology was deep-rooted and personal, as both his wife...
Jul 5, 2024 · Alexander Graham Bell, Scottish-born American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone (1876) and refinement of the phonograph (1886). He also worked on use of light to transmit sound, development of a metal detector, and heavier-than-air flight.
Apr 3, 2014 · Alexander Graham Bell was a Scottish-born scientist and inventor best known for inventing the first working telephone in 1876 and founding the Bell Telephone Company in 1877.
亚历山大·格雷厄姆·贝尔（英語： Alexander Graham Bell ， / ˈ ɡ r eɪ. ə m / ；1847年3月3日—1922年8月2日）是一位蘇格蘭出身的發明家及企业家。 他獲得了世界上第一台可用的 电话 机的 專利權 （發明者有爭議），创建了 貝爾電話公司 （ AT&T 公司的前身）。
An actor portraying Alexander Graham Bell speaking into an early model telephone. The invention of the telephone was the culmination of work done by more than one individual, and led to an array of lawsuits relating to the patent claims of several individuals and numerous companies.
亞歷山大·格拉漢姆·貝爾（英語： Alexander Graham Bell ， / ˈ ɡ r eɪ. ə m / ；1847年3月3日—1922年8月2日）是一位蘇格蘭出身的發明家及企業家。 他獲得了世界上第一台可用的 電話 機的 專利權 （發明者有爭議），創建了 貝爾電話公司 （ AT&T 公司的前身）。
Oct 19, 2018 · Alexander Graham Bell demonstrated the telephone to Queen Victoria in 1878, and in 1878 the Telephone Company Ltd was formed to market Bell's phones in Britain. In 1880 the first phone book was published, and an important court judgment granted the Post Office monopoly on telephone services.
亚历山大·格雷厄姆·贝尔 （英语： Alexander Graham Bell ， / ˈɡreɪ.əm / ；1847年3月3日—1922年8月2日）是一位 苏格兰 出身的发明家及企业家。 他获得了世界上第一台可用的 电话 机的 专利权 （发明者有争议），创建了 贝尔电话公司 （ AT&T 公司的前身）。 同时也是 国家地理学会 的创办人之一与第二任主席. 简历 [ 编辑] 1847年3月3日亚历山大·格拉汉姆·贝尔出生于 苏格兰 爱丁堡 。 1870年贝尔移民到 加拿大 ，一年后到 美国 。 1882年他加入美国国籍。 贝尔本人是一个声学生理学家和 聋哑人语 的教师。 贝尔的父亲、祖父、兄弟的工作都与演说术和发声法有关，他的母亲和妻子是聋人，这一切都深刻影响着贝尔一生的工作。
In the 1870s two American inventors, Elisha Gray and Alexander Graham Bell, each independently, designed devices that could transmit speech electrically. Gray’s first device made use of a harmonic telegraph, the transmitter and receiver of which consisted of a set of metallic reeds tuned to different frequencies.
