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CN310201136SActive Publication Date: 2026-09-11张庆
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Patent Information
- Application Number
- CN202630186335.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-20
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2041-04-20
Smart Images
Figure 000008_ABST
Abstract
1. The name of the design product: observation window. 2. The use of the design product: air conditioning return air frame structure for the top of the express train, for air circulation and impurity filtration in the carriage. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
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