Through-wall check valve
CN309044810SActive Publication Date: 2024-12-31杨立豹
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Patent Information
- Application Number
- CN202430296951.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2039-05-20
Smart Images
Figure 000007_ABST
Abstract
1. The name of this design product: through-wall check valve. 2. Purpose of this design product: Check valve used for smoke exhaust, fire prevention and smoke prevention in flue. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.
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