CN105365457B - 一种多功能黑板 - Google Patents
一种多功能黑板 Download PDFInfo
- Publication number
- CN105365457B CN105365457B CN201510866589.8A CN201510866589A CN105365457B CN 105365457 B CN105365457 B CN 105365457B CN 201510866589 A CN201510866589 A CN 201510866589A CN 105365457 B CN105365457 B CN 105365457B
- Authority
- CN
- China
- Prior art keywords
- roller bearing
- curtain
- ontology
- lower roller
- back side
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/08—Blackboards flexible
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Abstract
Description
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510866589.8A CN105365457B (zh) | 2015-11-30 | 2015-11-30 | 一种多功能黑板 |
CN201710821295.2A CN107599684A (zh) | 2015-11-30 | 2015-11-30 | 一种改进的多功能黑板 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510866589.8A CN105365457B (zh) | 2015-11-30 | 2015-11-30 | 一种多功能黑板 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710821295.2A Division CN107599684A (zh) | 2015-11-30 | 2015-11-30 | 一种改进的多功能黑板 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105365457A CN105365457A (zh) | 2016-03-02 |
CN105365457B true CN105365457B (zh) | 2018-11-16 |
Family
ID=55368312
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510866589.8A Active CN105365457B (zh) | 2015-11-30 | 2015-11-30 | 一种多功能黑板 |
CN201710821295.2A Pending CN107599684A (zh) | 2015-11-30 | 2015-11-30 | 一种改进的多功能黑板 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710821295.2A Pending CN107599684A (zh) | 2015-11-30 | 2015-11-30 | 一种改进的多功能黑板 |
Country Status (1)
Country | Link |
---|---|
CN (2) | CN105365457B (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202428924U (zh) * | 2011-12-29 | 2012-09-12 | 臧垒超 | 一种多用途黑板 |
CN203854375U (zh) * | 2014-04-29 | 2014-10-01 | 四川工程职业技术学院 | 一种书写、投影双用黑板 |
CN104442114A (zh) * | 2014-12-15 | 2015-03-25 | 广西大学 | 带有自动擦的黑板 |
CN205202536U (zh) * | 2015-11-30 | 2016-05-04 | 沈晶晶 | 一种多功能教具 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05597A (ja) * | 1991-06-25 | 1993-01-08 | Oki Electric Ind Co Ltd | 画像消去機構付電子黒板装置 |
CN2463181Y (zh) * | 2001-02-21 | 2001-12-05 | 张弛 | 一种新型黑板 |
CN2508981Y (zh) * | 2001-11-12 | 2002-09-04 | 刘洋 | 自动除尘黑板 |
CN2915546Y (zh) * | 2006-07-07 | 2007-06-27 | 窦昌国 | 粉擦 |
CN201677632U (zh) * | 2010-05-12 | 2010-12-22 | 脱忠衡 | 一种教学黑板 |
CN202727727U (zh) * | 2012-03-01 | 2013-02-13 | 张德柱 | 多功能自动除尘黑板 |
JP2013010356A (ja) * | 2012-08-22 | 2013-01-17 | Sakawa:Kk | 上下スライド式ボード機構 |
CN203267566U (zh) * | 2013-04-25 | 2013-11-06 | 苏州市职业大学 | 一种循环布自擦黑板 |
CN203666208U (zh) * | 2013-12-11 | 2014-06-25 | 俞强 | 防尘黑板擦 |
JP6370061B2 (ja) * | 2014-02-28 | 2018-08-08 | 株式会社北島製作所 | 電子黒板装置及び電子黒板装置の使用方法 |
-
2015
- 2015-11-30 CN CN201510866589.8A patent/CN105365457B/zh active Active
- 2015-11-30 CN CN201710821295.2A patent/CN107599684A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202428924U (zh) * | 2011-12-29 | 2012-09-12 | 臧垒超 | 一种多用途黑板 |
CN203854375U (zh) * | 2014-04-29 | 2014-10-01 | 四川工程职业技术学院 | 一种书写、投影双用黑板 |
CN104442114A (zh) * | 2014-12-15 | 2015-03-25 | 广西大学 | 带有自动擦的黑板 |
CN205202536U (zh) * | 2015-11-30 | 2016-05-04 | 沈晶晶 | 一种多功能教具 |
Also Published As
Publication number | Publication date |
---|---|
CN105365457A (zh) | 2016-03-02 |
CN107599684A (zh) | 2018-01-19 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20191212 Address after: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Patentee after: Anhui Eagle Dragon Industrial Design Co., Ltd. Address before: 314501, No. 32, Yan Jia Cun, Wuzhen Town, Tongxiang, Zhejiang, Henan Patentee before: Shen Jingjing |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200603 Address after: 239000 Anhui city of Chuzhou province Su Chu Modern Industrial Park Su Chu modern industrial square No. 13 factory Patentee after: CHUZHOU AIWOFU PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Address before: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Patentee before: ANHUI YINGLONG INDUSTRIAL DESIGN Co.,Ltd. |
|
TR01 | Transfer of patent right |