CN304450954S - - Google Patents
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- Publication number
- CN304450954S CN304450954S CN304450954S CN 304450954 S CN304450954 S CN 304450954S CN 304450954 S CN304450954 S CN 304450954S
- Authority
- CN
- China
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Main classification number: 21-02 |