CN2568424Y - 遥控自洁式黑板 - Google Patents
遥控自洁式黑板 Download PDFInfo
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- CN2568424Y CN2568424Y CN 02248114 CN02248114U CN2568424Y CN 2568424 Y CN2568424 Y CN 2568424Y CN 02248114 CN02248114 CN 02248114 CN 02248114 U CN02248114 U CN 02248114U CN 2568424 Y CN2568424 Y CN 2568424Y
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- 238000004140 cleaning Methods 0.000 title claims description 7
- 239000000843 powder Substances 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02248114 CN2568424Y (zh) | 2002-09-17 | 2002-09-17 | 遥控自洁式黑板 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 02248114 CN2568424Y (zh) | 2002-09-17 | 2002-09-17 | 遥控自洁式黑板 |
Publications (1)
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CN2568424Y true CN2568424Y (zh) | 2003-08-27 |
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Family Applications (1)
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CN 02248114 Expired - Fee Related CN2568424Y (zh) | 2002-09-17 | 2002-09-17 | 遥控自洁式黑板 |
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CN (1) | CN2568424Y (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105172432A (zh) * | 2015-10-19 | 2015-12-23 | 石家庄科达文教用品有限公司 | 电动整体式干擦书写板 |
CN112158008A (zh) * | 2020-10-20 | 2021-01-01 | 烟台工程职业技术学院(烟台市技师学院) | 一种课堂教育教学辅助装置 |
-
2002
- 2002-09-17 CN CN 02248114 patent/CN2568424Y/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105172432A (zh) * | 2015-10-19 | 2015-12-23 | 石家庄科达文教用品有限公司 | 电动整体式干擦书写板 |
CN112158008A (zh) * | 2020-10-20 | 2021-01-01 | 烟台工程职业技术学院(烟台市技师学院) | 一种课堂教育教学辅助装置 |
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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: SHENZHEN YUWANGFU INDUSTRY CO.,LTD. Free format text: FORMER OWNER: WANG YONG Effective date: 20041001 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20041001 Address after: Longgang District of Shenzhen City, Guangdong province 518001 new Longgang town Tian Lu Xian Patentee after: Shenzhen Chongqing Wangfu Industry Co., Ltd. Address before: 518000 Guangdong Province, Shenzhen city Longgang District Center City Ziwei Garden West 16604 Patentee before: Wang Yong |
|
ASS | Succession or assignment of patent right |
Owner name: YU YAN Free format text: FORMER OWNER: SHENZHEN YUWANGFU INDUSTRY CO.,LTD. Effective date: 20050318 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20050318 Address after: 518083, Guangdong, Shenzhen, Nanshan District overseas Chinese City Fairview garden, relying on the sea Pavilion 15A Patentee after: Yu Yan Address before: Longgang District of Shenzhen City, Guangdong province 518001 new Longgang town Tian Lu Xian Patentee before: Shenzhen Chongqing Wangfu Industry Co., Ltd. |
|
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |