TREA

Frederick A. Duimstra

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  • Anaheim Hills, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Non-latching relay switch assembly
    • Patent number 5,003,275
    • Issue date Mar 26, 1991
    • Babcock, Inc.
    • Frederick A. Duimstra
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Latching relay switch assembly
    • Patent number 4,998,082
    • Issue date Mar 5, 1991
    • Babcock, Inc.
    • Frederick A. Duimstra
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Fuse wire switch
    • Patent number 4,906,962
    • Issue date Mar 6, 1990
    • Babcock, Inc.
    • Frederick A. Duimstra
    • H01 - BASIC ELECTRIC ELEMENTS