The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202030602344.6 | Oct 2020 | CN | national |
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| 306763906 | Aug 2021 | CN |