公元 1876 年
Telephone Patent
Voice communication began moving through wires.
- 年代
- 公元 1876 年
- 地区
- 北美
- 主题
- 科学与发明
- 文明
- 工业时代
Alexander Graham Bell's telephone patent became part of a communications revolution that compressed distance.
Voice communication began moving through wires.
Alexander Graham Bell's telephone patent became part of a communications revolution that compressed distance.