Drainage manhole cover
CN309500304SActive Publication Date: 2025-09-16赵延伟
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Patent Information
- Application Number
- CN202530059087.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2040-02-10
Smart Images
Figure 000001_ABST
Abstract
1. The name of this design product: drainage manhole cover. 2. Purpose of this design product: Used to cover the wellhead in the drainage system to ensure that water on the road surface can flow smoothly into the sewer, while preventing large objects from falling into the well and causing blockage. 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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