TREA

Edmond J. Helstab

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  • Ottawa, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Handheld telephone
    • Patent number D348458
    • Issue date Jul 5, 1994
    • Northern Telecom Limited
    • Michael Brown
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Base for a telephone set
    • Patent number D307905
    • Issue date May 15, 1990
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Add-on module for a homogeneous unit telephone set
    • Patent number D306859
    • Issue date Mar 27, 1990
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Base for telephone set
    • Patent number D303965
    • Issue date Oct 10, 1989
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Keyboard key arrangement
    • Patent number D302977
    • Issue date Aug 22, 1989
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Operator workstation
    • Patent number D300490
    • Issue date Apr 4, 1989
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D06 - Furnishings
  • Information Patent Grant

    Divider panel for an operator workstation or the like
    • Patent number D299985
    • Issue date Feb 28, 1989
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D06 - Furnishings
  • Information Patent Grant

    Divider panel for an operator workstation or the like
    • Patent number D299794
    • Issue date Feb 14, 1989
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D06 - Furnishings
  • Information Patent Grant

    Divider panel for an operator workstation or the like
    • Patent number D299795
    • Issue date Feb 14, 1989
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D06 - Furnishings
  • Information Patent Grant

    Housing for computer equipment
    • Patent number D299465
    • Issue date Jan 17, 1989
    • Northern Telecom Limited
    • Edmond J. Helstab
    • D14 - Recording, communication, or information retrieval equipment