TREA

Douglas L. Johnson

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  • Seattle, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Blind edgewise connector
    • Patent number 4,938,624
    • Issue date Jul 3, 1990
    • Radiant Optics Inc.
    • Roger N. Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Blind edgewise connector
    • Patent number 4,780,019
    • Issue date Oct 25, 1988
    • Radiant Optics Inc.
    • Roger N. Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...