Representative country of application |
: | 中国 |
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Application number |
: | 202010018637.9 |
Publication number |
: | 111422841 |
Patent number |
: | ZL202010018637.9 |
Date of filing |
: | 2020/01/08 |
Date of publication |
: | 2020/07/17 |
Date of patent |
: | 2023/07/21 |
International patent classification |
: | C01B 25/32 (2006.01) |
Published unexamined patent application |
: | |
Link for Patent Gazette |
: |
Access From 2021.3.1 |
: |
- Accesses |
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