CN303999521S - - Google Patents
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- Publication number
- CN303999521S CN303999521S CN303999521S CN 303999521 S CN303999521 S CN 303999521S CN 303999521 S CN303999521 S CN 303999521S
- 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.)
- Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20170104 Main classification number: 31-00 |