Drainage board (grooves form a fulcrum)
CN309481421SActive Publication Date: 2025-09-05SHANGHAI SANCAI TECH DEV CO LTD
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Patent Information
- Application Number
- CN202530029217.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2040-01-16
Smart Images
Figure 000007_ABST
Abstract
1. The name of this design product: Drainage board (grooves forming a fulcrum). 2. Purpose of this design product: a device used for drainage of hollow surface layers and roofs of buildings and green spaces. 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: Stereoscopic drawing 1.
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