Beijing Guo Cheng Wan Tong Information Co. Ltd

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Patents Grantslast 30 patents

Information Patent Grant
Methods and devices for transmitting/obtaining information by visib...
- Patent number 9,407,367
- Issue date Aug 2, 2016
- Beijing Guo Cheng Wan Tong Information Co. Ltd
- Cheng Guo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE