Video: 'On This Day - March 7 - Alexander Graham Bell patents the telephone'
(Tuesday, March 7, 1876) — Alexander Graham Bell, 29, was granted a United States patent (No. 174,465) today for an invention he called the telephone.
Video: 'On This Day - March 7 - Alexander Graham Bell patents the telephone'
(Tuesday, March 7, 1876) — Alexander Graham Bell, 29, was granted a United States patent (No. 174,465) today for an invention he called the telephone.