TREA

James W. Ruban

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  • Honesdale, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two-pan balance
    • Patent number D568189
    • Issue date May 6, 2008
    • Ohaus Corporation
    • Richard M. O'Grady
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Triple-beam balance
    • Patent number D568190
    • Issue date May 6, 2008
    • Ohaus Corporation
    • Richard M. O'Grady
    • D10 - Measuring, testing, or signalling instruments