TREA

Da K. Li

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  • Acton, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mixing scale
    • Patent number 6,180,892
    • Issue date Jan 30, 2001
    • Setra Systems, Inc.
    • Da Ke Li
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Humidity control system for a scale
    • Patent number 4,846,293
    • Issue date Jul 11, 1989
    • Setra Systems, Inc.
    • Da K. Li
    • G01 - MEASURING TESTING