7 mar 1876 año - Telephone
Descripción:
Alexander Graham Bell, scientist, inventor and innovator, received the first patent for an “apparatus for transmitting vocal or other sounds telegraphically,” a device he called the telephone. A system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
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fecha:
7 mar 1876 año
Ahora mismo
~ 148 years ago
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