| Number | Date | Country | Kind |
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| 201930021079.X | Jan 2019 | CN | national |
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| 85103560 | Oct 1985 | CN |
| 2572525 | Sep 2003 | CN |
| 201430055 | Mar 2010 | CN |
| 202905387 | Apr 2013 | CN |
| 204668095 | Sep 2015 | CN |
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| Entry |
|---|
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