CN202442726U - 一种教室用信息装置 - Google Patents
一种教室用信息装置 Download PDFInfo
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- CN202442726U CN202442726U CN2012200382214U CN201220038221U CN202442726U CN 202442726 U CN202442726 U CN 202442726U CN 2012200382214 U CN2012200382214 U CN 2012200382214U CN 201220038221 U CN201220038221 U CN 201220038221U CN 202442726 U CN202442726 U CN 202442726U
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- interface circuit
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CN2012200382214U CN202442726U (zh) | 2012-02-07 | 2012-02-07 | 一种教室用信息装置 |
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CN2012200382214U CN202442726U (zh) | 2012-02-07 | 2012-02-07 | 一种教室用信息装置 |
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CN202442726U true CN202442726U (zh) | 2012-09-19 |
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CN2012200382214U Expired - Fee Related CN202442726U (zh) | 2012-02-07 | 2012-02-07 | 一种教室用信息装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106909105A (zh) * | 2017-03-07 | 2017-06-30 | 长春市万易科技有限公司 | 基于RFID和Zigbee技术的智能节电终端 |
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2012
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106909105A (zh) * | 2017-03-07 | 2017-06-30 | 长春市万易科技有限公司 | 基于RFID和Zigbee技术的智能节电终端 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HENAN SCIENCE AND TECHNOLOGY COLLEGE Free format text: FORMER OWNER: LI ZHAOFENG Effective date: 20120920 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20120920 Address after: Eastern section of Wuyi Road, Hongqi District, Xinxiang, Henan Patentee after: Henan Science and Technology College Address before: Hongqi Road, Hongqi District, Henan, Xinxiang Province, Henan Institute of Science and Technology Patentee before: Li Zhaofeng |
|
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: 20120919 Termination date: 20130207 |