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David Tak Fung Chow

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  • Kowloon Bay, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lenses
    • Patent number 7,445,334
    • Issue date Nov 4, 2008
    • Easy Power Limited
    • David Tak Fung Chow
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL