TREA

Alexander MacLean

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  • Hingham, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Snap action switch
    • Patent number 6,492,606
    • Issue date Dec 10, 2002
    • Electroswitch Corporation
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Tagging relay
    • Patent number 5,321,376
    • Issue date Jun 14, 1994
    • Electro Switch Corp.
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Lock-out relay with adjustable trip coil
    • Patent number 4,399,421
    • Issue date Aug 16, 1983
    • Electro Switch Corp.
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Latching switch relay
    • Patent number 4,255,733
    • Issue date Mar 10, 1981
    • Electro Switch Corp.
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Selector switch relay
    • Patent number 4,137,439
    • Issue date Jan 30, 1979
    • Electro Switch Corp.
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Control switch relay and control circuit means
    • Patent number 4,133,020
    • Issue date Jan 2, 1979
    • Electro Switch Corp.
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Control switch relay and control circuit means
    • Patent number 4,106,072
    • Issue date Aug 8, 1978
    • Electro Switch Corp.
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Control switch relay and control circuit means
    • Patent number 4,001,740
    • Issue date Jan 4, 1977
    • Electro Switch Corporation
    • Alexander MacLean
    • H01 - BASIC ELECTRIC ELEMENTS