| Number | Date | Country | Kind |
|---|---|---|---|
| 202030396004.2 | Jul 2020 | CN | national |
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| Number | Date | Country |
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| 305177425 | May 2019 | CN |
| 002140764-0003 | Dec 2012 | EM |
| 303100289 | Feb 2015 | EM |
| 303100295 | Feb 2015 | EM |
| 006564928-0001 | Jul 2019 | EM |