Ranran Du

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 10,242,105
- Issue date Mar 26, 2019
- Alibaba Group Holding Limited
- Ranran Du
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
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- Publication number 20140379682
- Publication date Dec 25, 2014
- Ranran Du
- G06 - COMPUTING CALCULATING COUNTING