CN203563180U - Portable multifunctional learning headset - Google Patents
Portable multifunctional learning headset Download PDFInfo
- Publication number
- CN203563180U CN203563180U CN201320789543.7U CN201320789543U CN203563180U CN 203563180 U CN203563180 U CN 203563180U CN 201320789543 U CN201320789543 U CN 201320789543U CN 203563180 U CN203563180 U CN 203563180U
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Application Number | Priority Date | Filing Date | Title |
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CN201320789543.7U CN203563180U (en) | 2013-12-03 | 2013-12-03 | Portable multifunctional learning headset |
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CN201320789543.7U CN203563180U (en) | 2013-12-03 | 2013-12-03 | Portable multifunctional learning headset |
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CN203563180U true CN203563180U (en) | 2014-04-23 |
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CN201320789543.7U Expired - Fee Related CN203563180U (en) | 2013-12-03 | 2013-12-03 | Portable multifunctional learning headset |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112991845A (en) * | 2020-07-20 | 2021-06-18 | 律世刚 | Foreign language learning device |
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2013
- 2013-12-03 CN CN201320789543.7U patent/CN203563180U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112991845A (en) * | 2020-07-20 | 2021-06-18 | 律世刚 | Foreign language learning device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Wang Ying Inventor after: Zhang Chaowei Inventor after: Xing Jing Inventor after: Liu Zhanhao Inventor before: Wang Ying Inventor before: Zhang Chaowei Inventor before: Xing Jing |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG YING ZHANG CHAOWEI XING LIANG TO: WANG YING ZHANG CHAOWEI XING LIANG LIU ZHANHAO |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20171203 |