Room low frequency calibrator
CN309866244SActive Publication Date: 2026-03-24张永春 +3
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-24
Smart Images

Figure 000021_ABST
Abstract
1. The name of the design product: room low frequency calibrator. 2. The use of the design product: the design product is mainly used for the improvement and calibration of room acoustics in architectural acoustics, decoration. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
Need to check novelty before this filing date? Find Prior Art