Telephone

History of the Telephone

By Donkey Teeth

  • History of the Telephone

    History of the Telephone
    Source
    First intrument to transmit a spoken word by Phillip Reis
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    History of the Telephone

  • History of the Telephone

    History of the Telephone
    Source
    Philip Reis built a apparatus that changed sound to electricity and back again to sound.

  • History of the Telephone

    History of the Telephone
    Source
    A.G. Bell developed the basics for the telephone.

  • History of the Telephone

    History of the Telephone
    Source
    Bell files patent application on February 14

  • History of the Telephone

    History of the Telephone
    Source
    Bell makes the first telephone exchange and first telephone exchange comes on line.

  • History of the Telephone

    History of the Telephone
    Source
    Thomas Edison discovers flow of electricity in a vacuum.

  • History of the Telephone

    History of the Telephone
    Source
    Bell formed the American telephone.

  • History of the Telephone

    History of the Telephone
    Source
    William gray patented the coin-operated telephone.

  • History of the Telephone

    History of the Telephone
    Source
    AT&T's first touch-tone phones were a big hit.

  • History of the Telephone

    History of the Telephone
    Source
    First commercial cellular system by the Illinois Bell.

  • History of the Telephone

    History of the Telephone
    They could come up with more battery percentage, a projecting screen, a non-breakable phone… etc.