Planar wave loudspeaker (tunnel broadcast)
CN309363147SActive Publication Date: 2025-07-01浙江交投高速公路运营管理有限公司
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Patent Information
- Application Number
- CN202430718015.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2039-11-13
Smart Images
Figure 000007_ABST
Abstract
1. Name of the Design Product: Planar Wave Loudspeaker (Tunnel Broadcasting). 2. Use of the Design Product: For long-distance directional sound wave emission. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.
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