Blackboard (scroll up and down)
CN309436518SActive Publication Date: 2025-08-12NINGBO UNIV
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Patent Information
- Application Number
- CN202530001750.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2040-01-03
Smart Images
Figure 000003_ABST
Abstract
1. The name of this design product: blackboard (scrolling up and down). 2. Purpose of this product: This product is used for teaching writing on the blackboard, and the writing can be erased by scrolling up and down. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.
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