manhole cover
CN309444799SActive Publication Date: 2025-08-15陈百东
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202530005390.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2040-01-06
Smart Images

Figure 000001_ABST
Abstract
1. The name of this design product: manhole cover. 2. Purpose of this design product: covering the wellhead. 3. The design key points of this appearance design product are: the main view. 4. The picture or photo that best illustrates the key points of the design: main view. 5. The back of this design product is difficult to see or cannot be seen during use, so the rear view is omitted.
Need to check novelty before this filing date? Find Prior Art