TREA

Douglas E. Johnson

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  • Columbus, NE, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrical resistor
    • Patent number 4,529,958
    • Issue date Jul 16, 1985
    • Dale Electronics, Inc.
    • Herman R. Person
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrical resistor
    • Patent number 4,467,311
    • Issue date Aug 21, 1984
    • Dale Electronics, Inc.
    • Herman R. Person
    • H01 - BASIC ELECTRIC ELEMENTS