TREA

John G. Engstrom

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  • Indianapolis, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone stand
    • Patent number D297325
    • Issue date Aug 23, 1988
    • American Telephone and Telegraph Company, AT&T Information Systems
    • John G. Engstrom
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Intrusion sensing device
    • Patent number 4,587,517
    • Issue date May 6, 1986
    • AT&T Technologies, Inc.
    • John G. Engstrom
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Telecommunications system console or similar article
    • Patent number D282358
    • Issue date Jan 28, 1986
    • AT&T Information Systems Inc.
    • John S. Campbell
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Portable transmitter
    • Patent number D280896
    • Issue date Oct 8, 1985
    • AT&T Bell Laboratories
    • John S. Campbell
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Telephone stand
    • Patent number D252331
    • Issue date Jul 10, 1979
    • Bell Telephone Laboratories, Incorporated
    • Andrew J. Baase
    • D14 - Recording, communication, or information retrieval equipment