CN106739677B - 一种数学教学黑板 - Google Patents
一种数学教学黑板 Download PDFInfo
- Publication number
- CN106739677B CN106739677B CN201710143506.1A CN201710143506A CN106739677B CN 106739677 B CN106739677 B CN 106739677B CN 201710143506 A CN201710143506 A CN 201710143506A CN 106739677 B CN106739677 B CN 106739677B
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- CN
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- blackboard
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- chalk
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Classifications
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- 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
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- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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- 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
- B43L21/00—Blackboard or slate cleaning devices
-
- 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
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/007—Circular curve-drawing or like instruments with perforated or marked rulers
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- Drawing Aids And Blackboards (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710143506.1A CN106739677B (zh) | 2017-03-11 | 2017-03-11 | 一种数学教学黑板 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710143506.1A CN106739677B (zh) | 2017-03-11 | 2017-03-11 | 一种数学教学黑板 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106739677A CN106739677A (zh) | 2017-05-31 |
CN106739677B true CN106739677B (zh) | 2019-01-01 |
Family
ID=58962446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710143506.1A Active CN106739677B (zh) | 2017-03-11 | 2017-03-11 | 一种数学教学黑板 |
Country Status (1)
Country | Link |
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CN (1) | CN106739677B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107718947A (zh) * | 2017-08-31 | 2018-02-23 | 邹先微 | 一种多功能黑板 |
CN107718955A (zh) * | 2017-08-31 | 2018-02-23 | 邹先微 | 一种斜线尺 |
CN110877492A (zh) * | 2018-09-06 | 2020-03-13 | 邯郸学院 | 一种绘制数学图形的装置 |
CN109177600A (zh) * | 2018-11-01 | 2019-01-11 | 王冠涵 | 自带绘图工具的黑板 |
CN112606596A (zh) * | 2020-12-24 | 2021-04-06 | 青岛黄海学院 | 一种大学高等数学专用多功能绘图器 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1048821A (zh) * | 1989-07-18 | 1991-01-30 | 曾德邻 | 一种书写、绘图、声画合一的全自动黑板 |
JP2005225142A (ja) * | 2004-02-13 | 2005-08-25 | Ricoh Elemex Corp | 書込み装置 |
CN201380685Y (zh) * | 2009-02-09 | 2010-01-13 | 龚志平 | 黑板几何图形绘画尺 |
MX2010006704A (es) * | 2010-06-03 | 2010-11-25 | Jose Luis Del Socorro Davila Aviles | Pizarrón didáctico de matemáticas. |
CN203762547U (zh) * | 2014-03-11 | 2014-08-13 | 王怀志 | 多功能数学教学专用架 |
CN204382947U (zh) * | 2015-01-29 | 2015-06-10 | 杨国栋 | 一种用于数学教学用作图黑板 |
CN204432121U (zh) * | 2015-03-17 | 2015-07-01 | 王耀文 | 数学教学用辅助装置 |
CN204701328U (zh) * | 2015-05-05 | 2015-10-14 | 河北工程技术高等专科学校 | 一种数学教学黑板 |
CN204701331U (zh) * | 2015-06-08 | 2015-10-14 | 王景红 | 一种数学教学用黑板 |
CN205272954U (zh) * | 2015-11-30 | 2016-06-01 | 李树刚 | 数学教学用黑板 |
CN205381058U (zh) * | 2015-12-17 | 2016-07-13 | 王秀梅 | 一种教学用多功能黑板 |
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2017
- 2017-03-11 CN CN201710143506.1A patent/CN106739677B/zh active Active
Also Published As
Publication number | Publication date |
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CN106739677A (zh) | 2017-05-31 |
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Legal Events
Date | Code | Title | Description |
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PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
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TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20180704 Address after: 102600 3 floor, 2 building, No. 4 Daxing District Garden Road, Beijing, 1 unit 317 Applicant after: BEIJING ZHITOUJIA INTELLECTUAL PROPERTY OPERATION CO.,LTD. Address before: 277800 Shandong province Zaozhuang Zaozhuang High-tech Zone Fuyuan three road intelligent manufacturing town 206 room Applicant before: ZAOZHUANG PANGU PRECISION MACHINERY TECHNOLOGY CO.,LTD. |
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TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20181114 Address after: 325100 Xiaojing Ao, Qiao Xia Town, Yongjia County, Wenzhou, Zhejiang Applicant after: Kanglong World Amusement Co.,Ltd. Address before: 102600 3 floor, 2 building, No. 4 Daxing District Garden Road, Beijing, 1 unit 317 Applicant before: BEIJING ZHITOUJIA INTELLECTUAL PROPERTY OPERATION CO.,LTD. |
|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Kind of Mathematics Teaching Blackboard Effective date of registration: 20230602 Granted publication date: 20190101 Pledgee: Agricultural Bank of China Limited Yongjia County sub branch Pledgor: Kanglong World Amusement Co.,Ltd. Registration number: Y2023330001056 |