tube headphone amplifier
CN309456023SActive Publication Date: 2025-08-22陈然
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Patent Information
- Application Number
- CN202430785389.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2039-12-10
Smart Images
Figure 000003_ABST
Abstract
1. The name of this design product: tube headphone amplifier. 2. Purpose of this design product: used to connect the sound source to headphones to improve or amplify the sound quality. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The bottom view of this product is not commonly seen, so it is omitted.
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