CN203142165U - Dust-free blackboard - Google Patents
Dust-free blackboard Download PDFInfo
- Publication number
- CN203142165U CN203142165U CN 201320136695 CN201320136695U CN203142165U CN 203142165 U CN203142165 U CN 203142165U CN 201320136695 CN201320136695 CN 201320136695 CN 201320136695 U CN201320136695 U CN 201320136695U CN 203142165 U CN203142165 U CN 203142165U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- dust
- blackboard eraser
- eraser
- groove
- Prior art date
- 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 - Fee Related
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- Drawing Aids And Blackboards (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320136695 CN203142165U (en) | 2013-03-23 | 2013-03-23 | Dust-free blackboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320136695 CN203142165U (en) | 2013-03-23 | 2013-03-23 | Dust-free blackboard |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203142165U true CN203142165U (en) | 2013-08-21 |
Family
ID=48969717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201320136695 Expired - Fee Related CN203142165U (en) | 2013-03-23 | 2013-03-23 | Dust-free blackboard |
Country Status (1)
Country | Link |
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CN (1) | CN203142165U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105751765A (en) * | 2014-12-18 | 2016-07-13 | 上海市格致中学 | Connected blackboard |
CN106427324A (en) * | 2016-10-31 | 2017-02-22 | 无锡市凤翔实验学校 | Blackboard with automatic dust removing function |
-
2013
- 2013-03-23 CN CN 201320136695 patent/CN203142165U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105751765A (en) * | 2014-12-18 | 2016-07-13 | 上海市格致中学 | Connected blackboard |
CN106427324A (en) * | 2016-10-31 | 2017-02-22 | 无锡市凤翔实验学校 | Blackboard with automatic dust removing function |
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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: FAN ZUHONG Free format text: FORMER OWNER: YIN TIAN Effective date: 20140403 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Fan Zuhong Inventor before: Yin Tian |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YIN TIAN TO: FAN ZUHONG |
|
TR01 | Transfer of patent right |
Effective date of registration: 20140403 Address after: 262200 Shandong city of Weifang Province Zhucheng City Liuzhou Street No. 280 Patentee after: Fan Zuhong Address before: 262200 Shandong city of Weifang Province Zhucheng city resident Patentee before: Yin Tian |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140323 |