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Daka Development Ltd. (Hong Kong Corporation)

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  • Hong Kong, CN
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  • Information Patent Grant

    Pin display device
    • Patent number 6,625,088
    • Issue date Sep 23, 2003
    • Daka Development Ltd. (Hong Kong Corporation)
    • Pat Y. Mah
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

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