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David Ping Lai Lui

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  • Hong Kong, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Timer switch
    • Patent number 7,251,142
    • Issue date Jul 31, 2007
    • Advanced Timer Technologies Limited
    • David Ping Lai Lui
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...