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History of the Telephone

  • work on the telephone

    work on the telephone

    Reis started to work on the telephone.
  • Period: to

    History of the Telephone

  • First non-working telephone

    First non-working telephone

    Reis completed the first non-working telephone
  • patent search

    patent search

    Green went to Washington to conduct a patent search
  • First patent

    First patent

    Bell put the first patent on the telephone
  • patent application

    patent application

    Bell patent application was filled by his own attorney
  • Offer

    Offer

    Habbard and Sanders offered to sell telephone patent right.
  • Western Electric

    Western Electric

    Kellog retired from Western Electic
  • Patent Expired

    Patent Expired

    Bell made the second telephone patent expired
  • AT&T

    AT&T

    AT&T established Bell Telephone Laboratories
  • AT&T

    AT&T

    AT&T develops the concept of the cellular telephony
  • AT&T

    AT&T

    They had wireless telephones
  • IPhone 5

    IPhone 5

    They have the IPhone 5