• Current transformer system

    • Patent no. 171040

    Polish patent document, invention title: Current transformer system.
    Assignee: Computers & Control, Katowice, Polska.
    The patent lasts since March 17, 1993.

    Patent 1
  • Voltage transformer system

    • Patent no. 171634

    Polish patent document, invention title: Voltage transformer system,
    Assignee: Computers & Control, Katowice, Polska.
    The patent lasts since March 17,1993.
    Patent 2