Digigraphics Toys & Games Ltd.

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Chai Wan, HK

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Patents Grantslast 30 patents

Information Patent Grant
Hidden image identification system, products, identification device...
- Patent number 8,331,608
- Issue date Dec 11, 2012
- Digigraphics Toys & Games Ltd.
- Wah Sing Alex Cheung
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER