TREA

Keith Walmsley

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  • Preston, EN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrical circuit breakers
    • Patent number 4,023,132
    • Issue date May 10, 1977
    • Dorman Smith Switchgear Limited
    • Alan Lister Kidd
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrical circuit breakers
    • Patent number 3,943,477
    • Issue date Mar 9, 1976
    • Dorman Smith Switchgear Limited
    • Alan Lister Kidd
    • H01 - BASIC ELECTRIC ELEMENTS