Smart manhole cover (2)
CN309787071SActive Publication Date: 2026-02-10SHANGHAI TIANLIAN DIGITAL INTELLIGENCE TECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202530334949.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-11
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2040-06-11
Smart Images
Figure 000007_ABST
Abstract
1. The name of the design product: wisdom well lid (2). 2. The use of the design product: the design product is used in the embedded circular cement well lid, and whether the methane, ethane and other flammable and explosive gases in the gas pipeline node well cellar leak. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.
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